123127domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that are concatenations of k with k + 4.at n=14A032627Primes formed from the concatenation of n and nextprime(n).at n=30A280376Emirps p such that p+(sum of digits of p) and reverse(p)+(sum of digits of p) are emirps.at n=8A340843Prime numbersat n=11575