115021242553 has 24 divisors (see below), whose sum is σ = 138159055104. Its totient is φ = 95379832800.

The previous prime is 115021242541. The next prime is 115021242563. The reversal of 115021242553 is 355242120511.

It is not a de Polignac number, because 115021242553 - 2²⁹ = 114484371641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (115021242563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5879398 + ... + 5898928.

It is an arithmetic number, because the mean of its divisors is an integer number (5756627296).

Almost surely, 2^115021242553 is an apocalyptic number.

It is an amenable number.

115021242553 is a deficient number, since it is larger than the sum of its proper divisors (23137812551).

115021242553 is a wasteful number, since it uses less digits than its factorization.

115021242553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23453 (or 23446 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 115021242553 in words is "one hundred fifteen billion, twenty-one million, two hundred forty-two thousand, five hundred fifty-three".