113489912065 has 16 divisors (see below), whose sum is σ = 137412557568. Its totient is φ = 89975716096.

The previous prime is 113489912059. The next prime is 113489912089. The reversal of 113489912065 is 560219984311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113489912065 - 2³ = 113489912057 is a prime.

It is a Duffinian 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, 7341234 + ... + 7356676.

It is an arithmetic number, because the mean of its divisors is an integer number (8588284848).

Almost surely, 2^113489912065 is an apocalyptic number.

It is an amenable number.

113489912065 is a deficient number, since it is larger than the sum of its proper divisors (23922645503).

113489912065 is a wasteful number, since it uses less digits than its factorization.

113489912065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28568.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 113489912065 in words is "one hundred thirteen billion, four hundred eighty-nine million, nine hundred twelve thousand, sixty-five".