113049931 has 4 divisors (see below), whose sum is σ = 113490072. Its totient is φ = 112609792.

The previous prime is 113049919. The next prime is 113049941. The reversal of 113049931 is 139940311.

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 113049931 - 2⁷ = 113049803 is a prime.

It is a super-2 number, since 2×113049931² = 25560573798209522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113049893 and 113049902.

It is not an unprimeable number, because it can be changed into a prime (113049941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219685 + ... + 220198.

It is an arithmetic number, because the mean of its divisors is an integer number (28372518).

Almost surely, 2^113049931 is an apocalyptic number.

113049931 is a deficient number, since it is larger than the sum of its proper divisors (440141).

113049931 is an equidigital number, since it uses as much as digits as its factorization.

113049931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440140.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 113049931 is about 10632.4941100383. The cubic root of 113049931 is about 483.5300104320.

The spelling of 113049931 in words is "one hundred thirteen million, forty-nine thousand, nine hundred thirty-one".