23 in Words
How do you write 23 in words?
The number 23 is written twenty-three in words. As an ordinal it is twenty-third, and on a check you would write Twenty-three and 00/100.
Last updated 24 August 2026
Other ways to write it
| Cardinal | twenty-three |
|---|---|
| Ordinal | twenty-third |
| Currency | twenty-three dollars |
| Check format | Twenty-three and 00/100 |
How 23 is written
23 is the sum of its place values, 20 + 3, and is written twenty-three.
Its ordinal form is twenty-third — only the final element takes the ordinal ending — and on a check the amount line reads "Twenty-three and 00/100", where 00/100 stands for zero cents.
The hyphen in twenty-three is required: English hyphenates every compound number from twenty-one to ninety-nine.
For house-style rules on spelling out numbers, see the Chicago Manual of Style.
Facts about 23
- 23 is an odd number.
- It is a prime number.
- Digit sum: 5.
- Roman numerals: XXIII.
- Binary: 10111.
- Hexadecimal: 17.
| Digit | Place |
|---|---|
| 2 | tens |
| 3 | ones |
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Frequently asked questions
How do you write 23 in words?
23 in words is "twenty-three".
How do you spell 23?
23 is spelled "twenty-three".
How do you write 23 on a check?
On a check, write "Twenty-three and 00/100".