Based on 4 June 2009 ED

3.2 Algorithmic

japanese-formal
This uses the cjk-ideographic system with the following modifications to the rules and the following table.
  • Do not apply rule 4.
  • In rule 6, remove all 0 digits, not only consecutive runs of 0 digits. If nothing is left; i.e., if the original value before splitting into gruops is zero, use single digit 0.
Formal Japanese numbering system
Values Codepoints
Second Group Marker萬万U+842C4E07
Third Group Marker億U+5104
Fourth Group Marker兆U+5146
Second Digit Marker拾U+62FE
Third Digit Marker佰U+4F70
Fourth Digit Marker仟U+4EDF
Digit 0〇零U+300796F6
Digit 1壱壹U+58F158F9
Digit 2弐貳U+5F108CB3
Digit 3参參U+53C23
Digit 4四肆U+56DB8086
Digit 5五伍U+4E944F0D
Digit 6六陆U+516D9646
Digit 7七柒U+4E0367D2
Digit 8八捌U+516B634C
Digit 9九玖U+4E5D7396

The suffix is なし、全角ピリオド、読点?

105 is 壱佰五.
japanese-informal
This uses the cjk-ideographic system with the following modifications to the rules and the following table.
  • In rule 3, if the digit is 1, the group marker should be used without the digit 1.
  • Rule 4 is not necessary because the above modification covers it.
  • In rule 6, remove all 0 digits, not only consecutive runs of 0 digits. If nothing is left; i.e., if the original value before splitting into gruops is zero, use single digit 0.
Informal Japanese numbering system
Values Codepoints
Second Group Marker万萬U+4E07842C
Third Group Marker億U+5104
Fourth Group Marker兆U+5146
Second Digit Marker十萬U+5341842C
Third Digit Marker百億U+767E5104
Fourth Digit Marker千兆U+53435146
Digit 0〇零U+300796F6
Digit 1一壹U+4E0058F9
Digit 2二贰U+4E8C8D30
Digit 3三叁U+4E0953C1
Digit 4四肆U+56DB8086
Digit 5五伍U+4E944F0D
Digit 6六陆U+516D9646
Digit 7七柒U+4E0367D2
Digit 8八捌U+516B634C
Digit 9九玖U+4E5D7396

The suffix is なし、全角ピリオド、読点?

111101 is 十一万千百一.

3.3 Numeric

<numeric>
arabic-indic | binary | bengali | cambodian | decimal | decimal-leading-zero | devanagari | gujarati | gurmukhi | japanese | kannada | khmer | lao | lower-hexadecimal | malayalam | mongolian | myanmar | octal | oriya | persian | super-decimal | telugu | tibetan | thai | upper-hexadecimal | urdu
Numeric repeating systems
System Characters Codepoints Base Suffix Notes
japanese 〇 一 二 三 四 五 六 七 八 九 U+3007, U+4E00, U+4E8C, U+4E09, U+56DB, U+4E94, U+516D, U+4E03, U+516B, U+4E5D 10 なし、全角ピリオド、読点? Minus sign is － U+FF0D ダッシュ U+2014/2015 やハイフン U+2010 の方がいいか? 縦書では縦棒になるべきか?

全角数字・全角英字は必要? text-transform:fullwidthで充分?

3.4 Alphabetic

Alphabetic repeating systems
System Characters Codepoints Base Suffix Notes
hiragana-iroha い ろ は に ほ へ と ち り ぬ る を わ か よ た れ そ つ ね な ら む う ゐ の お く や ま け ふ こ え て あ さ き ゆ め み し ゑ ひ も せ す ん U+3044, U+308D, U+306F, U+306B, U+307B, U+3078, U+3068, U+3061, U+308A, U+306C, U+308B, U+3092, U+308F, U+304B, U+3088, U+305F, U+308C, U+305D, U+3064, U+306D, U+306A, U+3089, U+3080, U+3046, U+3090, U+306E, U+304A, U+304F, U+3084, U+307E, U+3051, U+3075, U+3053, U+3048, U+3066, U+3042, U+3055, U+304D, U+3086, U+3081, U+307F, U+3057, U+3091, U+3072, U+3082, U+305B, U+3059, U+3093 487 なし、全角ピリオド、読点? One character is not in this list.
hiragana あ い う え お か き く け こ さ し す せ そ た ち つ て と な に ぬ ね の は ひ ふ へ ほ ま み む め も や ゆ よ ら り る れ ろ わ ゐ ゑ を ん U+3042, U+3044, U+3046, U+3048, U+304A, U+304B, U+304D, U+304F, U+3051, U+3053, U+3055, U+3057, U+3059, U+305B, U+305D, U+305F, U+3061, U+3064, U+3066, U+3068, U+306A, U+306B, U+306C, U+306D, U+306E, U+306F, U+3072, U+3075, U+3078, U+307B, U+307E, U+307F, U+3080, U+3081, U+3082, U+3084, U+3086, U+3088, U+3089, U+308A, U+308B, U+308C, U+308D, U+308F, U+3090, U+3091, U+3092, U+3093 468 なし、全角ピリオド、読点? One character is not in this list.
katakana-iroha イ ロ ハ ニ ホ ヘ ト チ リ ヌ ル ヲ ワ カ ヨ タ レ ソ ツ ネ ナ ラ ム ウ ヰ ノ オ ク ヤ マ ケ フ コ エ テ ア サ キ ユ メ ミ シ ヱ ヒ モ セ ス ン U+30A4, U+30ED, U+30CF, U+30CB, U+30DB, U+30D8, U+30C8, U+30C1, U+30EA, U+30CC, U+30EB, U+30F2, U+30EF, U+30AB, U+30E8, U+30BF, U+30EC, U+30BD, U+30C4, U+30CD, U+30CA, U+30E9, U+30E0, U+30A6, U+30F0, U+30CE, U+30AA, U+30AF, U+30E4, U+30DE, U+30B1, U+30D5, U+30B3, U+30A8, U+30C6, U+30A2, U+30B5, U+30AD, U+30E6, U+30E1, U+30DF, U+30B7, U+30F1, U+30D2, U+30E2, U+30BB, U+30B9, U+30F3 487 なし、全角ピリオド、読点? One character is not in this list.
katakana ア イ ウ エ オ カ キ ク ケ コ サ シ ス セ ソ タ チ ツ テ ト ナ ニ ヌ ネ ノ ハ ヒ フ ヘ ホ マ ミ ム メ モ ヤ ユ ヨ ラ リ ル レ ロ ワ ヰ ヱ ヲ ン U+30A2, U+30A4, U+30A6, U+30A8, U+30AA, U+30AB, U+30AD, U+30AF, U+30B1, U+30B3, U+30B5, U+30B7, U+30B9, U+30BB, U+30BD, U+30BF, U+30C1, U+30C4, U+30C6, U+30C8, U+30CA, U+30CB, U+30CC, U+30CD, U+30CE, U+30CF, U+30D2, U+30D5, U+30D8, U+30DB, U+30DE, U+30DF, U+30E0, U+30E1, U+30E2, U+30E4, U+30E6, U+30E8, U+30E9, U+30EA, U+30EB, U+30EC, U+30ED, U+30EF, U+30F0, U+30F1, U+30F2, U+30F3 468 なし、全角ピリオド、読点? Four character is not in this list.

半角カナは必要?

3.6 Non-repeating

Non-repeating systems
System Range Codepoint Mapping
upper-roman-numerals 1-12
Value 1 2 3 ... 11 12
Character Ⅰ Ⅱ Ⅲ ... Ⅺ Ⅻ
Codepoint U+2160 U+2161 U+2162 ... U+216A U+216B
lower-roman-numerals 1-12
Value 1 2 3 ... 11 12
Character ⅰ ⅱ ⅲ ... ⅺ ⅻ
Codepoint U+2170 U+2171 U+2172 ... U+217A U+217B