22113023231 has 8 divisors (see below), whose sum is σ = 23839672080. Its totient is φ = 20390038272.

The previous prime is 22113023227. The next prime is 22113023267. The reversal of 22113023231 is 13232031122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22113023231 - 2² = 22113023227 is a prime.

It is a super-2 number, since 2×22113023231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113023291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903425 + ... + 927578.

It is an arithmetic number, because the mean of its divisors is an integer number (2979959010).

Almost surely, 2^22113023231 is an apocalyptic number.

22113023231 is a deficient number, since it is larger than the sum of its proper divisors (1726648849).

22113023231 is a wasteful number, since it uses less digits than its factorization.

22113023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831945.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22113023231 its reverse (13232031122), we get a palindrome (35345054353).

The spelling of 22113023231 in words is "twenty-two billion, one hundred thirteen million, twenty-three thousand, two hundred thirty-one".