113204312231 has 4 divisors (see below), whose sum is σ = 113211603600. Its totient is φ = 113197020864.

The previous prime is 113204312227. The next prime is 113204312257. The reversal of 113204312231 is 132213402311.

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

It is a cyclic number.

It is not a de Polignac number, because 113204312231 - 2² = 113204312227 is a prime.

It is a super-2 number, since 2×113204312231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113204312197 and 113204312206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113204312131) 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, 3622346 + ... + 3653463.

It is an arithmetic number, because the mean of its divisors is an integer number (28302900900).

Almost surely, 2^113204312231 is an apocalyptic number.

113204312231 is a deficient number, since it is larger than the sum of its proper divisors (7291369).

113204312231 is an equidigital number, since it uses as much as digits as its factorization.

113204312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291368.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 113204312231 its reverse (132213402311), we get a palindrome (245417714542).

The spelling of 113204312231 in words is "one hundred thirteen billion, two hundred four million, three hundred twelve thousand, two hundred thirty-one".