113299991 has 4 divisors (see below), whose sum is σ = 129485712. Its totient is φ = 97114272.

The previous prime is 113299961. The next prime is 113299993. The reversal of 113299991 is 199992311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 199992311 = 3583 ⋅55817.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113299991 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 (113299993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8092850 + ... + 8092863.

It is an arithmetic number, because the mean of its divisors is an integer number (32371428).

Almost surely, 2^113299991 is an apocalyptic number.

113299991 is a deficient number, since it is larger than the sum of its proper divisors (16185721).

113299991 is an equidigital number, since it uses as much as digits as its factorization.

113299991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185720.

The product of its digits is 39366, while the sum is 44.

The square root of 113299991 is about 10644.2468498246. The cubic root of 113299991 is about 483.8862614942.

The spelling of 113299991 in words is "one hundred thirteen million, two hundred ninety-nine thousand, nine hundred ninety-one".