22331140431 has 4 divisors (see below), whose sum is σ = 29774853912. Its totient is φ = 14887426952.

The previous prime is 22331140393. The next prime is 22331140441. The reversal of 22331140431 is 13404113322.

It is a happy number.

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 22331140431 - 2¹⁵ = 22331107663 is a prime.

It is a super-2 number, since 2×22331140431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22331140441) 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, 3721856736 + ... + 3721856741.

It is an arithmetic number, because the mean of its divisors is an integer number (7443713478).

Almost surely, 2^22331140431 is an apocalyptic number.

22331140431 is a deficient number, since it is larger than the sum of its proper divisors (7443713481).

22331140431 is an equidigital number, since it uses as much as digits as its factorization.

22331140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7443713480.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22331140431 its reverse (13404113322), we get a palindrome (35735253753).

The spelling of 22331140431 in words is "twenty-two billion, three hundred thirty-one million, one hundred forty thousand, four hundred thirty-one".