231113113203 has 12 divisors (see below), whose sum is σ = 358461155400. Its totient is φ = 132064636032.

The previous prime is 231113113193. The next prime is 231113113277. The reversal of 231113113203 is 302311311132.

It is a happy number.

It is not a de Polignac number, because 231113113203 - 2²⁵ = 231079558771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 231113113203.

It is not an unprimeable number, because it can be changed into a prime (231113113403) 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, 786098878 + ... + 786099171.

It is an arithmetic number, because the mean of its divisors is an integer number (29871762950).

Almost surely, 2^231113113203 is an apocalyptic number.

231113113203 is a deficient number, since it is larger than the sum of its proper divisors (127348042197).

231113113203 is a wasteful number, since it uses less digits than its factorization.

231113113203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572198066 (or 1572198059 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231113113203 its reverse (302311311132), we get a palindrome (533424424335).

The spelling of 231113113203 in words is "two hundred thirty-one billion, one hundred thirteen million, one hundred thirteen thousand, two hundred three".