13112031234961 has 2 divisors, whose sum is σ = 13112031234962. Its totient is φ = 13112031234960.

The previous prime is 13112031234943. The next prime is 13112031235049. The reversal of 13112031234961 is 16943213021131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6840087006736 + 6271944228225 = 2615356^2 + 2504385^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112031234961 - 2⁷ = 13112031234833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13112031234961.

It is not a weakly prime, because it can be changed into another prime (13112031234661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556015617480 + 6556015617481.

It is an arithmetic number, because the mean of its divisors is an integer number (6556015617481).

Almost surely, 2^{13112031234961} is an apocalyptic number.

It is an amenable number.

13112031234961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112031234961 is an equidigital number, since it uses as much as digits as its factorization.

13112031234961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 13112031234961 in words is "thirteen trillion, one hundred twelve billion, thirty-one million, two hundred thirty-four thousand, nine hundred sixty-one".