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Number → Words
One thousand one
Standard American English spelling
Ordinal Form
1001st
One thousand oneth
Number Format
1,001
1.00 × 10^3
On the written amount line of a check, write:
ONE THOUSAND ONE AND 00/100
Always write the full amount in words on a check to prevent fraud. The “AND 00/100” indicates zero cents.
1,001 in words is written as "One thousand one". This is the standard English spelling used in formal writing, checks, and legal documents.
On a check, write "ONE THOUSAND ONE AND 00/100" on the amount line. The "AND 00/100" part represents zero cents. Always capitalize and write it clearly to avoid fraud.
1,001 as an ordinal number is "1001st" (written: "one thousand oneth"). Ordinal numbers indicate position or rank in a sequence.
The number 1,001 is spelled: One thousand one. In British English, "and" is often inserted after hundreds (e.g., "one hundred and five"), but in American English it is typically omitted.