113130031321 has 4 divisors (see below), whose sum is σ = 115537053312. Its totient is φ = 110723009332.

The previous prime is 113130031309. The next prime is 113130031331. The reversal of 113130031321 is 123130031311.

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 113130031321 - 2⁷ = 113130031193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113130031331) 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, 1203510925 + ... + 1203511018.

It is an arithmetic number, because the mean of its divisors is an integer number (28884263328).

Almost surely, 2^113130031321 is an apocalyptic number.

It is an amenable number.

113130031321 is a deficient number, since it is larger than the sum of its proper divisors (2407021991).

113130031321 is an equidigital number, since it uses as much as digits as its factorization.

113130031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407021990.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 113130031321 its reverse (123130031311), we get a palindrome (236260062632).

The spelling of 113130031321 in words is "one hundred thirteen billion, one hundred thirty million, thirty-one thousand, three hundred twenty-one".