23122232131 has 4 divisors (see below), whose sum is σ = 23128490152. Its totient is φ = 23115974112.

The previous prime is 23122232113. The next prime is 23122232149. The reversal of 23122232131 is 13123222132.

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

It is an interprime number because it is at equal distance from previous prime (23122232113) and next prime (23122232149).

It is a cyclic number.

It is not a de Polignac number, because 23122232131 - 2⁹ = 23122231619 is a prime.

It is a super-2 number, since 2×23122232131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23122233131) 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, 3123465 + ... + 3130858.

It is an arithmetic number, because the mean of its divisors is an integer number (5782122538).

Almost surely, 2^23122232131 is an apocalyptic number.

23122232131 is a deficient number, since it is larger than the sum of its proper divisors (6258021).

23122232131 is an equidigital number, since it uses as much as digits as its factorization.

23122232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258020.

The product of its digits is 864, while the sum is 22.

Adding to 23122232131 its reverse (13123222132), we get a palindrome (36245454263).

Subtracting from 23122232131 its reverse (13123222132), we obtain a palindrome (9999009999).

The spelling of 23122232131 in words is "twenty-three billion, one hundred twenty-two million, two hundred thirty-two thousand, one hundred thirty-one".