311013312187 has 2 divisors, whose sum is σ = 311013312188. Its totient is φ = 311013312186.

The previous prime is 311013312179. The next prime is 311013312193. The reversal of 311013312187 is 781213310113.

It is a strong prime.

It is an emirp because it is prime and its reverse (781213310113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311013312187 - 2³ = 311013312179 is a prime.

It is not a weakly prime, because it can be changed into another prime (311013322187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155506656093 + 155506656094.

It is an arithmetic number, because the mean of its divisors is an integer number (155506656094).

Almost surely, 2^311013312187 is an apocalyptic number.

311013312187 is a deficient number, since it is larger than the sum of its proper divisors (1).

311013312187 is an equidigital number, since it uses as much as digits as its factorization.

311013312187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 311013312187 in words is "three hundred eleven billion, thirteen million, three hundred twelve thousand, one hundred eighty-seven".