1131133domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that contain digits 1 and 3 only.at n=35A020451Twin prime pairs using digits 1 and 3 only.at n=9A111070Primes formed by concatenating k, k and 3 for k >= 1.at n=27A210512Primes whose sum of decimal digits has the same set of decimal digits as the prime.at n=20A360986Prime numbersat n=87965