23321322131 has 4 divisors (see below), whose sum is σ = 23321628000. Its totient is φ = 23321016264.

The previous prime is 23321322119. The next prime is 23321322151. The reversal of 23321322131 is 13122312332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321322131 is a prime.

It is a super-2 number, since 2×23321322131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23321322097 and 23321322106.

It is not an unprimeable number, because it can be changed into a prime (23321322151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64145 + ... + 225293.

It is an arithmetic number, because the mean of its divisors is an integer number (5830407000).

Almost surely, 2^23321322131 is an apocalyptic number.

23321322131 is a deficient number, since it is larger than the sum of its proper divisors (305869).

23321322131 is a wasteful number, since it uses less digits than its factorization.

23321322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305868.

The product of its digits is 1296, while the sum is 23.

Adding to 23321322131 its reverse (13122312332), we get a palindrome (36443634463).

The spelling of 23321322131 in words is "twenty-three billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred thirty-one".