115212412305531 has 96 divisors (see below), whose sum is σ = 175802418792000. Its totient is φ = 72607985049600.

The previous prime is 115212412305527. The next prime is 115212412305553. The reversal of 115212412305531 is 135503214212511.

115212412305531 is a `hidden beast` number, since 1 + 1 + 52 + 1 + 2 + 41 + 2 + 30 + 5 + 531 = 666.

It is not a de Polignac number, because 115212412305531 - 2² = 115212412305527 is a prime.

It is a super-2 number, since 2×115212412305531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115212412325531) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1402781475 + ... + 1402863603.

It is an arithmetic number, because the mean of its divisors is an integer number (1831275195750).

Almost surely, 2^{115212412305531} is an apocalyptic number.

115212412305531 is a deficient number, since it is larger than the sum of its proper divisors (60590006486469).

115212412305531 is a wasteful number, since it uses less digits than its factorization.

115212412305531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82845 (or 82842 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 115212412305531 in words is "one hundred fifteen trillion, two hundred twelve billion, four hundred twelve million, three hundred five thousand, five hundred thirty-one".