115123312056 has 64 divisors (see below), whose sum is σ = 292114206720. Its totient is φ = 37801624320.

The previous prime is 115123312001. The next prime is 115123312067. The reversal of 115123312056 is 650213321511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380361 + ... + 1461383.

It is an arithmetic number, because the mean of its divisors is an integer number (4564284480).

Almost surely, 2^115123312056 is an apocalyptic number.

It is an amenable number.

115123312056 is an abundant number, since it is smaller than the sum of its proper divisors (176990894664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115123312056 is a wasteful number, since it uses less digits than its factorization.

115123312056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81916 (or 81912 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 115123312056 its reverse (650213321511), we get a palindrome (765336633567).

The spelling of 115123312056 in words is "one hundred fifteen billion, one hundred twenty-three million, three hundred twelve thousand, fifty-six".