31112423009971 has 2 divisors, whose sum is σ = 31112423009972. Its totient is φ = 31112423009970.

The previous prime is 31112423009959. The next prime is 31112423010001. The reversal of 31112423009971 is 17990032421113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31112423009971 - 2⁵ = 31112423009939 is a prime.

It is not a weakly prime, because it can be changed into another prime (31112423009071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556211504985 + 15556211504986.

It is an arithmetic number, because the mean of its divisors is an integer number (15556211504986).

Almost surely, 2^{31112423009971} is an apocalyptic number.

31112423009971 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112423009971 is an equidigital number, since it uses as much as digits as its factorization.

31112423009971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 31112423009971 in words is "thirty-one trillion, one hundred twelve billion, four hundred twenty-three million, nine thousand, nine hundred seventy-one".