115237561311 has 12 divisors (see below), whose sum is σ = 166527644920. Its totient is φ = 76791168720.

The previous prime is 115237561223. The next prime is 115237561321. The reversal of 115237561311 is 113165732511.

115237561311 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 37 + 5 + 613 + 1 + 1 = 666.

It is not a de Polignac number, because 115237561311 - 2⁷ = 115237561183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115237561321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2801125 + ... + 2841966.

Almost surely, 2^115237561311 is an apocalyptic number.

115237561311 is a deficient number, since it is larger than the sum of its proper divisors (51290083609).

115237561311 is a wasteful number, since it uses less digits than its factorization.

115237561311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645366 (or 5645363 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The spelling of 115237561311 in words is "one hundred fifteen billion, two hundred thirty-seven million, five hundred sixty-one thousand, three hundred eleven".