311399133053 has 2 divisors, whose sum is σ = 311399133054. Its totient is φ = 311399133052.

The previous prime is 311399133049. The next prime is 311399133091. The reversal of 311399133053 is 350331993113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298118184004 + 13280949049 = 546002^2 + 115243^2 .

It is a cyclic number.

It is not a de Polignac number, because 311399133053 - 2² = 311399133049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311399133053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311399132053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155699566526 + 155699566527.

It is an arithmetic number, because the mean of its divisors is an integer number (155699566527).

Almost surely, 2^311399133053 is an apocalyptic number.

It is an amenable number.

311399133053 is a deficient number, since it is larger than the sum of its proper divisors (1).

311399133053 is an equidigital number, since it uses as much as digits as its factorization.

311399133053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98415, while the sum is 41.

The spelling of 311399133053 in words is "three hundred eleven billion, three hundred ninety-nine million, one hundred thirty-three thousand, fifty-three".