2103312231 has 8 divisors (see below), whose sum is σ = 3116018160. Its totient is φ = 1402208136.

The previous prime is 2103312227. The next prime is 2103312241. The reversal of 2103312231 is 1322133012.

It is not a de Polignac number, because 2103312231 - 2² = 2103312227 is a prime.

It is a super-2 number, since 2×2103312231² = 8847844682148394722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103312241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38950200 + ... + 38950253.

It is an arithmetic number, because the mean of its divisors is an integer number (389502270).

Almost surely, 2^2103312231 is an apocalyptic number.

2103312231 is a deficient number, since it is larger than the sum of its proper divisors (1012705929).

2103312231 is an equidigital number, since it uses as much as digits as its factorization.

2103312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77900462 (or 77900456 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2103312231 is about 45861.8821135810. The cubic root of 2103312231 is about 1281.2520770428.

Adding to 2103312231 its reverse (1322133012), we get a palindrome (3425445243).

The spelling of 2103312231 in words is "two billion, one hundred three million, three hundred twelve thousand, two hundred thirty-one".