11,111

Number
$11 \, 111$ (eleven thousand, one hundred and eleven) is:


 * $41 \times 271$


 * The $5$th repuint after $1$, $11$, $111$, $1111$


 * A palindromic number whose square is also palindromic:

Also see

 * Square of Small-Digit Palindromic Number is Palindromic