115521115101 has 16 divisors (see below), whose sum is σ = 177298598400. Its totient is φ = 65537157168.

The previous prime is 115521115081. The next prime is 115521115111. The reversal of 115521115101 is 101511125511.

It is a happy number.

It is not a de Polignac number, because 115521115101 - 2⁵ = 115521115069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115521115111) 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, 19784871 + ... + 19790708.

It is an arithmetic number, because the mean of its divisors is an integer number (11081162400).

Almost surely, 2^115521115101 is an apocalyptic number.

It is an amenable number.

115521115101 is a deficient number, since it is larger than the sum of its proper divisors (61777483299).

115521115101 is a wasteful number, since it uses less digits than its factorization.

115521115101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39575728.

The product of its (nonzero) digits is 250, while the sum is 24.

The spelling of 115521115101 in words is "one hundred fifteen billion, five hundred twenty-one million, one hundred fifteen thousand, one hundred one".