311320294919 has 2 divisors, whose sum is σ = 311320294920. Its totient is φ = 311320294918.

The previous prime is 311320294903. The next prime is 311320294949. The reversal of 311320294919 is 919492023113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311320294919 - 2⁴ = 311320294903 is a prime.

It is a super-2 number, since 2×311320294919² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311320294919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311320294949) 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, 155660147459 + 155660147460.

It is an arithmetic number, because the mean of its divisors is an integer number (155660147460).

Almost surely, 2^311320294919 is an apocalyptic number.

311320294919 is a deficient number, since it is larger than the sum of its proper divisors (1).

311320294919 is an equidigital number, since it uses as much as digits as its factorization.

311320294919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 311320294919 in words is "three hundred eleven billion, three hundred twenty million, two hundred ninety-four thousand, nine hundred nineteen".