This number is a prime.
The smallest almost pandigital mountain prime having also the property “each of its digits d is first appearing in the dth position.” [Loungrides]
The smallest zeroless pandigital prime of the form 1P1, where P is prime. Note that three blocks of such a prime fuse together to generate another prime 1P1P1P1. [Beedassy]
The first prime formed from the leading digits of the Champernowne constant. [Harrison]