42311202012931 has 2 divisors, whose sum is σ = 42311202012932. Its totient is φ = 42311202012930.

The previous prime is 42311202012857. The next prime is 42311202013001. The reversal of 42311202012931 is 13921020211324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42311202012931 - 2⁷ = 42311202012803 is a prime.

It is a super-2 number, since 2×42311202012931² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42311202012893 and 42311202012902.

It is not a weakly prime, because it can be changed into another prime (42311202015931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155601006465 + 21155601006466.

It is an arithmetic number, because the mean of its divisors is an integer number (21155601006466).

Almost surely, 2^{42311202012931} is an apocalyptic number.

42311202012931 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311202012931 is an equidigital number, since it uses as much as digits as its factorization.

42311202012931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 42311202012931 in words is "forty-two trillion, three hundred eleven billion, two hundred two million, twelve thousand, nine hundred thirty-one".