311933342879 has 2 divisors, whose sum is σ = 311933342880. Its totient is φ = 311933342878.

The previous prime is 311933342857. The next prime is 311933342881. The reversal of 311933342879 is 978243339113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311933342879 - 2²⁸ = 311664907423 is a prime.

Together with 311933342881, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311933342879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311933342179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155966671439 + 155966671440.

It is an arithmetic number, because the mean of its divisors is an integer number (155966671440).

Almost surely, 2^311933342879 is an apocalyptic number.

311933342879 is a deficient number, since it is larger than the sum of its proper divisors (1).

311933342879 is an equidigital number, since it uses as much as digits as its factorization.

311933342879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 53.

The spelling of 311933342879 in words is "three hundred eleven billion, nine hundred thirty-three million, three hundred forty-two thousand, eight hundred seventy-nine".