311431010423077 has 2 divisors, whose sum is σ = 311431010423078. Its totient is φ = 311431010423076.

The previous prime is 311431010423033. The next prime is 311431010423131. The reversal of 311431010423077 is 770324010134113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278351384705956 + 33079625717121 = 16683866^2 + 5751489^2 .

It is a cyclic number.

It is not a de Polignac number, because 311431010423077 - 2³¹ = 311428862939429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311431010423177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155715505211538 + 155715505211539.

It is an arithmetic number, because the mean of its divisors is an integer number (155715505211539).

Almost surely, 2^{311431010423077} is an apocalyptic number.

It is an amenable number.

311431010423077 is a deficient number, since it is larger than the sum of its proper divisors (1).

311431010423077 is an equidigital number, since it uses as much as digits as its factorization.

311431010423077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 311431010423077 in words is "three hundred eleven trillion, four hundred thirty-one billion, ten million, four hundred twenty-three thousand, seventy-seven".