411317197379

This number is a composite.

                                                               41 1317197379

The smaller of two largest integers such that each two consecutive digits produce a distinct prime number: 41, 11, 13, 31, 17, 71, 19, 97, 73, 37 and 79, a total of eleven primes. No more than eleven distinct primes are possible this way. The larger one is 611317197379. [Rivera]