9091

Number
$9091$ (nine thousand and ninety-one) is:


 * The $1128$th prime number


 * The $5$th unique period prime after $3$, $11$, $37$, $101$: its period is $10$:
 * $\dfrac 1 {9091} = 0 \cdotp \dot 00010 \, 9998 \dot 9$

Also see

 * Reciprocal of 9091