113331013 has 4 divisors (see below), whose sum is σ = 115469388. Its totient is φ = 111192640.

The previous prime is 113331007. The next prime is 113331041. The reversal of 113331013 is 310133311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310133311 = 23 ⋅13484057.

It can be written as a sum of positive squares in 2 ways, for example, as 91259809 + 22071204 = 9553^2 + 4698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113331013 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 (113331073) 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, 1069108 + ... + 1069213.

It is an arithmetic number, because the mean of its divisors is an integer number (28867347).

Almost surely, 2^113331013 is an apocalyptic number.

It is an amenable number.

113331013 is a deficient number, since it is larger than the sum of its proper divisors (2138375).

113331013 is an equidigital number, since it uses as much as digits as its factorization.

113331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138374.

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

The square root of 113331013 is about 10645.7039692075. The cubic root of 113331013 is about 483.9304208086.

Adding to 113331013 its reverse (310133311), we get a palindrome (423464324).

The spelling of 113331013 in words is "one hundred thirteen million, three hundred thirty-one thousand, thirteen".