113205152231 has 12 divisors (see below), whose sum is σ = 117283208952. Its totient is φ = 109264402464.

The previous prime is 113205152213. The next prime is 113205152279. The reversal of 113205152231 is 132251502311.

It is not a de Polignac number, because 113205152231 - 2⁶ = 113205152167 is a prime.

It is a super-2 number, since 2×113205152231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113205152231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113205152531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2638805 + ... + 2681361.

It is an arithmetic number, because the mean of its divisors is an integer number (9773600746).

Almost surely, 2^113205152231 is an apocalyptic number.

113205152231 is a deficient number, since it is larger than the sum of its proper divisors (4078056721).

113205152231 is an equidigital number, since it uses as much as digits as its factorization.

113205152231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45778 (or 45749 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 113205152231 its reverse (132251502311), we get a palindrome (245456654542).

The spelling of 113205152231 in words is "one hundred thirteen billion, two hundred five million, one hundred fifty-two thousand, two hundred thirty-one".