112031309981 has 2 divisors, whose sum is σ = 112031309982. Its totient is φ = 112031309980.

The previous prime is 112031309939. The next prime is 112031310043. The reversal of 112031309981 is 189903130211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65928778756 + 46102531225 = 256766^2 + 214715^2 .

It is a cyclic number.

It is not a de Polignac number, because 112031309981 - 2³⁴ = 94851440797 is a prime.

It is a super-2 number, since 2×112031309981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112031309921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56015654990 + 56015654991.

It is an arithmetic number, because the mean of its divisors is an integer number (56015654991).

Almost surely, 2^112031309981 is an apocalyptic number.

It is an amenable number.

112031309981 is a deficient number, since it is larger than the sum of its proper divisors (1).

112031309981 is an equidigital number, since it uses as much as digits as its factorization.

112031309981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 112031309981 in words is "one hundred twelve billion, thirty-one million, three hundred nine thousand, nine hundred eighty-one".