311123011057 has 2 divisors, whose sum is σ = 311123011058. Its totient is φ = 311123011056.

The previous prime is 311123010983. The next prime is 311123011163. The reversal of 311123011057 is 750110321113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298994614416 + 12128396641 = 546804^2 + 110129^2 .

It is an emirp because it is prime and its reverse (750110321113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 311123011057 - 2³⁵ = 276763272689 is a prime.

It is not a weakly prime, because it can be changed into another prime (311123011657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155561505528 + 155561505529.

It is an arithmetic number, because the mean of its divisors is an integer number (155561505529).

Almost surely, 2^311123011057 is an apocalyptic number.

It is an amenable number.

311123011057 is a deficient number, since it is larger than the sum of its proper divisors (1).

311123011057 is an equidigital number, since it uses as much as digits as its factorization.

311123011057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The spelling of 311123011057 in words is "three hundred eleven billion, one hundred twenty-three million, eleven thousand, fifty-seven".