115656120103 has 12 divisors (see below), whose sum is σ = 120922793488. Its totient is φ = 110609737920.

The previous prime is 115656120091. The next prime is 115656120119. The reversal of 115656120103 is 301021656511.

It is a happy number.

It is not a de Polignac number, because 115656120103 - 2²⁵ = 115622565671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115656100103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4227358 + ... + 4254628.

Almost surely, 2^115656120103 is an apocalyptic number.

115656120103 is a deficient number, since it is larger than the sum of its proper divisors (5266673385).

115656120103 is an equidigital number, since it uses as much as digits as its factorization.

115656120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35334 (or 35311 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

Adding to 115656120103 its reverse (301021656511), we get a palindrome (416677776614).

The spelling of 115656120103 in words is "one hundred fifteen billion, six hundred fifty-six million, one hundred twenty thousand, one hundred three".