1,234,567,891,234,567,891,234,567,891

Number
$1 \, 234 \, 567 \, 891 \, 234 \, 567 \, 891 \, 234 \, 567 \, 891$ is:


 * The $3$rd of the only $3$ known prime numbers consisting of strings of consecutive ascending digits starting from $1$ (allowing either $0$ or $1$ to follow $9$)

Also see