311231002232057 has 2 divisors, whose sum is σ = 311231002232058. Its totient is φ = 311231002232056.

The previous prime is 311231002232039. The next prime is 311231002232071. The reversal of 311231002232057 is 750232200132113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251335491502096 + 59895510729961 = 15853564^2 + 7739219^2 .

It is a cyclic number.

It is not a de Polignac number, because 311231002232057 - 2²⁴ = 311230985454841 is a prime.

It is not a weakly prime, because it can be changed into another prime (311231002262057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155615501116028 + 155615501116029.

It is an arithmetic number, because the mean of its divisors is an integer number (155615501116029).

Almost surely, 2^{311231002232057} is an apocalyptic number.

It is an amenable number.

311231002232057 is a deficient number, since it is larger than the sum of its proper divisors (1).

311231002232057 is an equidigital number, since it uses as much as digits as its factorization.

311231002232057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 311231002232057 in words is "three hundred eleven trillion, two hundred thirty-one billion, two million, two hundred thirty-two thousand, fifty-seven".