2321022131 has 4 divisors (see below), whose sum is σ = 2323843152. Its totient is φ = 2318201112.

The previous prime is 2321022127. The next prime is 2321022167. The reversal of 2321022131 is 1312201232.

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 2321022131 - 2² = 2321022127 is a prime.

It is a super-2 number, since 2×2321022131² = 10774287465183562322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409276 + ... + 1410921.

It is an arithmetic number, because the mean of its divisors is an integer number (580960788).

Almost surely, 2^2321022131 is an apocalyptic number.

2321022131 is a deficient number, since it is larger than the sum of its proper divisors (2821021).

2321022131 is an equidigital number, since it uses as much as digits as its factorization.

2321022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821020.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2321022131 is about 48176.9875666796. The cubic root of 2321022131 is about 1324.0155746640.

Adding to 2321022131 its reverse (1312201232), we get a palindrome (3633223363).

The spelling of 2321022131 in words is "two billion, three hundred twenty-one million, twenty-two thousand, one hundred thirty-one".