2131130323 has 4 divisors (see below), whose sum is σ = 2435577520. Its totient is φ = 1826683128.

The previous prime is 2131130311. The next prime is 2131130333. The reversal of 2131130323 is 3230311312.

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 2131130323 - 2²¹ = 2129033171 is a prime.

It is a super-2 number, since 2×2131130323² = 9083432907220168658, which 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 2131130323.

It is not an unprimeable number, because it can be changed into a prime (2131130333) 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, 152223588 + ... + 152223601.

It is an arithmetic number, because the mean of its divisors is an integer number (608894380).

Almost surely, 2^2131130323 is an apocalyptic number.

2131130323 is a deficient number, since it is larger than the sum of its proper divisors (304447197).

2131130323 is an equidigital number, since it uses as much as digits as its factorization.

2131130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304447196.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2131130323 is about 46164.1670887714. The cubic root of 2131130323 is about 1286.8759053779.

Adding to 2131130323 its reverse (3230311312), we get a palindrome (5361441635).

The spelling of 2131130323 in words is "two billion, one hundred thirty-one million, one hundred thirty thousand, three hundred twenty-three".