608,981,813,029

Number
$608 \, 981 \, 813 \, 029$ is:


 * A prime number


 * The $1$st prime number $p$ at which there are more prime numbers less than $p$ of the form $3 n + 1$ than of the form $3 n - 1$.

Also see

 * Prime Number Race: $3 n+1$ vs. $3 n-1$