22003203231 has 16 divisors (see below), whose sum is σ = 32678644320. Its totient is φ = 14632214400.

The previous prime is 22003203227. The next prime is 22003203283. The reversal of 22003203231 is 13230230022.

It is a happy number.

22003203231 is a `hidden beast` number, since 2 + 20 + 0 + 320 + 323 + 1 = 666.

It is not a de Polignac number, because 22003203231 - 2² = 22003203227 is a prime.

It is a super-2 number, since 2×22003203231² (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 (22003202231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005300 + ... + 1026953.

It is an arithmetic number, because the mean of its divisors is an integer number (2042415270).

Almost surely, 2^22003203231 is an apocalyptic number.

22003203231 is a deficient number, since it is larger than the sum of its proper divisors (10675441089).

22003203231 is a wasteful number, since it uses less digits than its factorization.

22003203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032663 (or 2032657 counting only the distinct ones).

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

Adding to 22003203231 its reverse (13230230022), we get a palindrome (35233433253).

The spelling of 22003203231 in words is "twenty-two billion, three million, two hundred three thousand, two hundred thirty-one".