113638011 has 4 divisors (see below), whose sum is σ = 151517352. Its totient is φ = 75758672.

The previous prime is 113638003. The next prime is 113638043. The reversal of 113638011 is 110836311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113638011 - 2³ = 113638003 is a prime.

It is a super-2 number, since 2×113638011² = 25827195088072242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113638001) 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, 18939666 + ... + 18939671.

It is an arithmetic number, because the mean of its divisors is an integer number (37879338).

Almost surely, 2^113638011 is an apocalyptic number.

113638011 is a deficient number, since it is larger than the sum of its proper divisors (37879341).

113638011 is an equidigital number, since it uses as much as digits as its factorization.

113638011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37879340.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 113638011 is about 10660.1130857041. The cubic root of 113638011 is about 484.3669936436.

The spelling of 113638011 in words is "one hundred thirteen million, six hundred thirty-eight thousand, eleven".