311440321022977 has 2 divisors, whose sum is σ = 311440321022978. Its totient is φ = 311440321022976.

The previous prime is 311440321022969. The next prime is 311440321023001. The reversal of 311440321022977 is 779220123044113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310049798949361 + 1390522073616 = 17608231^2 + 1179204^2 .

It is a cyclic number.

It is not a de Polignac number, because 311440321022977 - 2³ = 311440321022969 is a prime.

It is not a weakly prime, because it can be changed into another prime (311440321020977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720160511488 + 155720160511489.

It is an arithmetic number, because the mean of its divisors is an integer number (155720160511489).

Almost surely, 2^{311440321022977} is an apocalyptic number.

It is an amenable number.

311440321022977 is a deficient number, since it is larger than the sum of its proper divisors (1).

311440321022977 is an equidigital number, since it uses as much as digits as its factorization.

311440321022977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 311440321022977 in words is "three hundred eleven trillion, four hundred forty billion, three hundred twenty-one million, twenty-two thousand, nine hundred seventy-seven".