113043013 has 4 divisors (see below), whose sum is σ = 119692620. Its totient is φ = 106393408.

The previous prime is 113042987. The next prime is 113043017. The reversal of 113043013 is 310340311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38962564 + 74080449 = 6242^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 113043013 - 2²⁵ = 79488581 is a prime.

It is a super-3 number, since 3×113043013³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113043017) 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, 3324778 + ... + 3324811.

It is an arithmetic number, because the mean of its divisors is an integer number (29923155).

Almost surely, 2^113043013 is an apocalyptic number.

It is an amenable number.

113043013 is a deficient number, since it is larger than the sum of its proper divisors (6649607).

113043013 is an equidigital number, since it uses as much as digits as its factorization.

113043013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649606.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 113043013 is about 10632.1687815798. The cubic root of 113043013 is about 483.5201471535.

Adding to 113043013 its reverse (310340311), we get a palindrome (423383324).

The spelling of 113043013 in words is "one hundred thirteen million, forty-three thousand, thirteen".