22132023231 has 4 divisors (see below), whose sum is σ = 29509364312. Its totient is φ = 14754682152.

The previous prime is 22132023209. The next prime is 22132023239. The reversal of 22132023231 is 13232023122.

It is a happy number.

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

It is not a de Polignac number, because 22132023231 - 2³⁰ = 21058281407 is a prime.

It is a super-2 number, since 2×22132023231² (a number of 21 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 = 22132023198 and 22132023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132023239) 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, 3688670536 + ... + 3688670541.

It is an arithmetic number, because the mean of its divisors is an integer number (7377341078).

Almost surely, 2^22132023231 is an apocalyptic number.

22132023231 is a deficient number, since it is larger than the sum of its proper divisors (7377341081).

22132023231 is an equidigital number, since it uses as much as digits as its factorization.

22132023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377341080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22132023231 its reverse (13232023122), we get a palindrome (35364046353).

The spelling of 22132023231 in words is "twenty-two billion, one hundred thirty-two million, twenty-three thousand, two hundred thirty-one".