113520013 has 4 divisors (see below), whose sum is σ = 114887808. Its totient is φ = 112152220.

The previous prime is 113519977. The next prime is 113520031. The reversal of 113520013 is 310025311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113520013 - 2⁹ = 113519501 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 (113520313) 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, 683773 + ... + 683938.

It is an arithmetic number, because the mean of its divisors is an integer number (28721952).

Almost surely, 2^113520013 is an apocalyptic number.

It is an amenable number.

113520013 is a deficient number, since it is larger than the sum of its proper divisors (1367795).

113520013 is an equidigital number, since it uses as much as digits as its factorization.

113520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367794.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 113520013 is about 10654.5770915602. The cubic root of 113520013 is about 484.1992852925.

Adding to 113520013 its reverse (310025311), we get a palindrome (423545324).

The spelling of 113520013 in words is "one hundred thirteen million, five hundred twenty thousand, thirteen".