113928031 has 4 divisors (see below), whose sum is σ = 130203472. Its totient is φ = 97652592.

The previous prime is 113928029. The next prime is 113928049. The reversal of 113928031 is 130829311.

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 113928031 - 2¹ = 113928029 is a prime.

It is a super-2 number, since 2×113928031² = 25959192495073922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113928011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8137710 + ... + 8137723.

It is an arithmetic number, because the mean of its divisors is an integer number (32550868).

Almost surely, 2^113928031 is an apocalyptic number.

113928031 is a deficient number, since it is larger than the sum of its proper divisors (16275441).

113928031 is an equidigital number, since it uses as much as digits as its factorization.

113928031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16275440.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 113928031 is about 10673.7074627329. The cubic root of 113928031 is about 484.7787008959.

It can be divided in two parts, 1139280 and 31, that added together give a palindrome (1139311).

The spelling of 113928031 in words is "one hundred thirteen million, nine hundred twenty-eight thousand, thirty-one".