22031023230 has 96 divisors (see below), whose sum is σ = 59101267680. Its totient is φ = 5690280960.

The previous prime is 22031023229. The next prime is 22031023237. The reversal of 22031023230 is 3232013022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031023237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 491434 + ... + 534386.

It is an arithmetic number, because the mean of its divisors is an integer number (615638205).

Almost surely, 2^22031023230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031023230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29550633840).

22031023230 is an abundant number, since it is smaller than the sum of its proper divisors (37070244450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22031023230 is a wasteful number, since it uses less digits than its factorization.

22031023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43146 (or 43143 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 22031023230 its reverse (3232013022), we get a palindrome (25263036252).

The spelling of 22031023230 in words is "twenty-two billion, thirty-one million, twenty-three thousand, two hundred thirty".