113331031 has 8 divisors (see below), whose sum is σ = 123744384. Its totient is φ = 102936120.

The previous prime is 113331007. The next prime is 113331041. The reversal of 113331031 is 130133311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113331031 - 2¹¹ = 113328983 is a prime.

It is a super-2 number, since 2×113331031² = 25687845175045922, 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 = 113330996 and 113331014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113331041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10380 + ... + 18286.

It is an arithmetic number, because the mean of its divisors is an integer number (15468048).

Almost surely, 2^113331031 is an apocalyptic number.

113331031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113331031 is a deficient number, since it is larger than the sum of its proper divisors (10413353).

113331031 is a wasteful number, since it uses less digits than its factorization.

113331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 113331031 is about 10645.7048146189. The cubic root of 113331031 is about 483.9304464290.

Adding to 113331031 its reverse (130133311), we get a palindrome (243464342).

The spelling of 113331031 in words is "one hundred thirteen million, three hundred thirty-one thousand, thirty-one".