111,111,111
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Number
$111 \, 111 \, 111$ (one hundred and eleven million, one hundred and eleven thousand, one hundred and eleven) is:
- $3^2 \times 37 \times 333 \, 667$
- The $9$th repuint after $1$, $11$, $111$, $1111$, $11 \, 111$, $111 \, 111$, $1 \, 111 \, 111$, $11 \, 111 \, 111$
- A palindromic number whose square is also palindromic:
- $111 \, 111 \, 111^2 = 12 \, 345 \, 678 \, 987 \, 654 \, 321$
Also see