42311202015931 has 2 divisors, whose sum is σ = 42311202015932. Its totient is φ = 42311202015930.

The previous prime is 42311202015911. The next prime is 42311202015983. The reversal of 42311202015931 is 13951020211324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42311202015931 - 2²³ = 42311193627323 is a prime.

It is a super-2 number, since 2×42311202015931² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42311202015911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155601007965 + 21155601007966.

It is an arithmetic number, because the mean of its divisors is an integer number (21155601007966).

Almost surely, 2^{42311202015931} is an apocalyptic number.

42311202015931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311202015931 is an equidigital number, since it uses as much as digits as its factorization.

42311202015931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 42311202015931 in words is "forty-two trillion, three hundred eleven billion, two hundred two million, fifteen thousand, nine hundred thirty-one".