115521453502131 has 16 divisors (see below), whose sum is σ = 160725759552000. Its totient is φ = 73665735686400.

The previous prime is 115521453502129. The next prime is 115521453502171. The reversal of 115521453502131 is 131205354125511.

It is not a de Polignac number, because 115521453502131 - 2¹ = 115521453502129 is a prime.

It is a super-2 number, since 2×115521453502131² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115521453502131.

It is not an unprimeable number, because it can be changed into a prime (115521453502171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65871370 + ... + 67602368.

It is an arithmetic number, because the mean of its divisors is an integer number (10045359972000).

Almost surely, 2^{115521453502131} is an apocalyptic number.

115521453502131 is a deficient number, since it is larger than the sum of its proper divisors (45204306049869).

115521453502131 is a wasteful number, since it uses less digits than its factorization.

115521453502131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698226.

The product of its (nonzero) digits is 90000, while the sum is 39.

The spelling of 115521453502131 in words is "one hundred fifteen trillion, five hundred twenty-one billion, four hundred fifty-three million, five hundred two thousand, one hundred thirty-one".