31112302020971 has 2 divisors, whose sum is σ = 31112302020972. Its totient is φ = 31112302020970.

The previous prime is 31112302020953. The next prime is 31112302021027. The reversal of 31112302020971 is 17902020321113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31112302020971 - 2¹⁸ = 31112301758827 is a prime.

It is not a weakly prime, because it can be changed into another prime (31112302020671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556151010485 + 15556151010486.

It is an arithmetic number, because the mean of its divisors is an integer number (15556151010486).

Almost surely, 2^{31112302020971} is an apocalyptic number.

31112302020971 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112302020971 is an equidigital number, since it uses as much as digits as its factorization.

31112302020971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 31112302020971 in words is "thirty-one trillion, one hundred twelve billion, three hundred two million, twenty thousand, nine hundred seventy-one".