22131123323 has 4 divisors (see below), whose sum is σ = 22379787720. Its totient is φ = 21882458928.

The previous prime is 22131123317. The next prime is 22131123331. The reversal of 22131123323 is 32332113122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131123323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131123523) 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, 124332065 + ... + 124332242.

It is an arithmetic number, because the mean of its divisors is an integer number (5594946930).

Almost surely, 2^22131123323 is an apocalyptic number.

22131123323 is a deficient number, since it is larger than the sum of its proper divisors (248664397).

22131123323 is an equidigital number, since it uses as much as digits as its factorization.

22131123323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248664396.

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

Adding to 22131123323 its reverse (32332113122), we get a palindrome (54463236445).

The spelling of 22131123323 in words is "twenty-two billion, one hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty-three".