113

Number
$113$ (one hundred and thirteen) is:


 * The $30$th prime number


 * The $11$th Sophie Germain prime after $2, 3, 5, 11, 23, 29, 41, 53, 83, 89$:
 * $2 \times 113 + 1 = 227$, which is prime.


 * The $10$th emirp after $13, 17, 31, 37, 71, 73, 79, 97, 107$


 * The smallest $3$-digit permutable prime:
 * $113$, $131$, $311$

Also see

 * Smallest 3-Digit Permutable Prime