113122013 has 4 divisors (see below), whose sum is σ = 113251008. Its totient is φ = 112993020.

The previous prime is 113122003. The next prime is 113122019. The reversal of 113122013 is 310221311.

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 a de Polignac number, because none of the positive numbers 2^k-113122013 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 (113122019) 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, 63173 + ... + 64938.

It is an arithmetic number, because the mean of its divisors is an integer number (28312752).

Almost surely, 2^113122013 is an apocalyptic number.

It is an amenable number.

113122013 is a deficient number, since it is larger than the sum of its proper divisors (128995).

113122013 is an equidigital number, since it uses as much as digits as its factorization.

113122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128994.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113122013 is about 10635.8832731466. The cubic root of 113122013 is about 483.6327567872.

Adding to 113122013 its reverse (310221311), we get a palindrome (423343324).

The spelling of 113122013 in words is "one hundred thirteen million, one hundred twenty-two thousand, thirteen".