113581171243 has 2 divisors, whose sum is σ = 113581171244. Its totient is φ = 113581171242.

The previous prime is 113581171213. The next prime is 113581171259. The reversal of 113581171243 is 342171185311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113581171243 - 2²⁵ = 113547616811 is a prime.

It is not a weakly prime, because it can be changed into another prime (113581171213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56790585621 + 56790585622.

It is an arithmetic number, because the mean of its divisors is an integer number (56790585622).

Almost surely, 2^113581171243 is an apocalyptic number.

113581171243 is a deficient number, since it is larger than the sum of its proper divisors (1).

113581171243 is an equidigital number, since it uses as much as digits as its factorization.

113581171243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 37.

The spelling of 113581171243 in words is "one hundred thirteen billion, five hundred eighty-one million, one hundred seventy-one thousand, two hundred forty-three".