2130312231 has 28 divisors (see below), whose sum is σ = 3199385880. Its totient is φ = 1417817520.

The previous prime is 2130312227. The next prime is 2130312251. The reversal of 2130312231 is 1322130312.

It is not a de Polignac number, because 2130312231 - 2² = 2130312227 is a prime.

It is a super-2 number, since 2×2130312231² = 9076460403096394722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130312251) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 501625 + ... + 505853.

Almost surely, 2^2130312231 is an apocalyptic number.

2130312231 is a deficient number, since it is larger than the sum of its proper divisors (1069073649).

2130312231 is an frugal number, since it uses more digits than its factorization.

2130312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938 (or 4923 counting only the distinct ones).

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

The square root of 2130312231 is about 46155.3055563496. The cubic root of 2130312231 is about 1286.7112169316.

Adding to 2130312231 its reverse (1322130312), we get a palindrome (3452442543).

The spelling of 2130312231 in words is "two billion, one hundred thirty million, three hundred twelve thousand, two hundred thirty-one".