115715015121 has 16 divisors (see below), whose sum is σ = 156941840000. Its totient is φ = 75817797120.

The previous prime is 115715015111. The next prime is 115715015123. The reversal of 115715015121 is 121510517511.

It is not a de Polignac number, because 115715015121 - 2¹⁵ = 115714982353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115715015123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24565 + ... + 481698.

It is an arithmetic number, because the mean of its divisors is an integer number (9808865000).

Almost surely, 2^115715015121 is an apocalyptic number.

It is an amenable number.

115715015121 is a deficient number, since it is larger than the sum of its proper divisors (41226824879).

115715015121 is a wasteful number, since it uses less digits than its factorization.

115715015121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507576.

The product of its (nonzero) digits is 1750, while the sum is 30.

The spelling of 115715015121 in words is "one hundred fifteen billion, seven hundred fifteen million, fifteen thousand, one hundred twenty-one".