113203120331 has 32 divisors (see below), whose sum is σ = 136430942208. Its totient is φ = 91833730560.

The previous prime is 113203120319. The next prime is 113203120339. The reversal of 113203120331 is 133021302311.

It is a cyclic number.

It is not a de Polignac number, because 113203120331 - 2¹⁰ = 113203119307 is a prime.

It is a super-2 number, since 2×113203120331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113203120339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6082466 + ... + 6101048.

It is an arithmetic number, because the mean of its divisors is an integer number (4263466944).

Almost surely, 2^113203120331 is an apocalyptic number.

113203120331 is a deficient number, since it is larger than the sum of its proper divisors (23227821877).

113203120331 is a wasteful number, since it uses less digits than its factorization.

113203120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19011.

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

Adding to 113203120331 its reverse (133021302311), we get a palindrome (246224422642).

The spelling of 113203120331 in words is "one hundred thirteen billion, two hundred three million, one hundred twenty thousand, three hundred thirty-one".