115542125231 has 4 divisors (see below), whose sum is σ = 124429981032. Its totient is φ = 106654269432.

The previous prime is 115542125221. The next prime is 115542125233. The reversal of 115542125231 is 132521245511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115542125231 - 2²⁶ = 115475016367 is a prime.

It is a super-2 number, since 2×115542125231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115542125233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4443927881 + ... + 4443927906.

It is an arithmetic number, because the mean of its divisors is an integer number (31107495258).

Almost surely, 2^115542125231 is an apocalyptic number.

115542125231 is a deficient number, since it is larger than the sum of its proper divisors (8887855801).

115542125231 is an equidigital number, since it uses as much as digits as its factorization.

115542125231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8887855800.

The product of its digits is 12000, while the sum is 32.

The spelling of 115542125231 in words is "one hundred fifteen billion, five hundred forty-two million, one hundred twenty-five thousand, two hundred thirty-one".