113623013 has 24 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 90847680.

The previous prime is 113623009. The next prime is 113623031. The reversal of 113623013 is 310326311.

It is a happy number.

It is not a de Polignac number, because 113623013 - 2² = 113623009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113623033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44978 + ... + 47436.

It is an arithmetic number, because the mean of its divisors is an integer number (5889240).

Almost surely, 2^113623013 is an apocalyptic number.

It is an amenable number.

113623013 is a deficient number, since it is larger than the sum of its proper divisors (27718747).

113623013 is a wasteful number, since it uses less digits than its factorization.

113623013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 113623013 is about 10659.4095990350. The cubic root of 113623013 is about 484.3456837089.

Adding to 113623013 its reverse (310326311), we get a palindrome (423949324).

The spelling of 113623013 in words is "one hundred thirteen million, six hundred twenty-three thousand, thirteen".