2312972291 has 4 divisors (see below), whose sum is σ = 2643396912. Its totient is φ = 1982547672.

The previous prime is 2312972273. The next prime is 2312972293. The reversal of 2312972291 is 1922792132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2312972291 - 2¹⁰ = 2312971267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312972293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165212300 + ... + 165212313.

It is an arithmetic number, because the mean of its divisors is an integer number (660849228).

Almost surely, 2^2312972291 is an apocalyptic number.

2312972291 is a deficient number, since it is larger than the sum of its proper divisors (330424621).

2312972291 is an equidigital number, since it uses as much as digits as its factorization.

2312972291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330424620.

The product of its digits is 27216, while the sum is 38.

The square root of 2312972291 is about 48093.3705514596. The cubic root of 2312972291 is about 1322.4831379003.

The spelling of 2312972291 in words is "two billion, three hundred twelve million, nine hundred seventy-two thousand, two hundred ninety-one".