311320102997 has 2 divisors, whose sum is σ = 311320102998. Its totient is φ = 311320102996.

The previous prime is 311320102987. The next prime is 311320103027. The reversal of 311320102997 is 799201023113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201285925201 + 110034177796 = 448649^2 + 331714^2 .

It is a cyclic number.

It is not a de Polignac number, because 311320102997 - 2²⁶ = 311252994133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311320102997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311320102987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155660051498 + 155660051499.

It is an arithmetic number, because the mean of its divisors is an integer number (155660051499).

Almost surely, 2^311320102997 is an apocalyptic number.

It is an amenable number.

311320102997 is a deficient number, since it is larger than the sum of its proper divisors (1).

311320102997 is an equidigital number, since it uses as much as digits as its factorization.

311320102997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 311320102997 in words is "three hundred eleven billion, three hundred twenty million, one hundred two thousand, nine hundred ninety-seven".