311662864043 has 2 divisors, whose sum is σ = 311662864044. Its totient is φ = 311662864042.

The previous prime is 311662864021. The next prime is 311662864057. The reversal of 311662864043 is 340468266113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311662864043 - 2²⁴ = 311646086827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311662863985 and 311662864003.

It is not a weakly prime, because it can be changed into another prime (311662864003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155831432021 + 155831432022.

It is an arithmetic number, because the mean of its divisors is an integer number (155831432022).

Almost surely, 2^311662864043 is an apocalyptic number.

311662864043 is a deficient number, since it is larger than the sum of its proper divisors (1).

311662864043 is an equidigital number, since it uses as much as digits as its factorization.

311662864043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 311662864043 in words is "three hundred eleven billion, six hundred sixty-two million, eight hundred sixty-four thousand, forty-three".