11,213

Number
$11 \, 213$ (eleven thousand, two hundred and thirteen) is:


 * The $1357$th prime number


 * The index of the $23$rd Mersenne prime after $2$, $3$, $5$, $7$, $13$, $\ldots$, $2203$, $2281$, $3217$, $4253$, $4423$, $9689$, $9941$:
 * $M_{11 \, 213} = 2^{11 \, 213} - 1 \approx 2 \cdotp 814 \times 10^{3375}$