20331223032 has 32 divisors (see below), whose sum is σ = 53817944400. Its totient is φ = 6378422784.

The previous prime is 20331223027. The next prime is 20331223043. The reversal of 20331223032 is 23032213302.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24915307 + ... + 24916122.

Almost surely, 2^20331223032 is an apocalyptic number.

It is an amenable number.

20331223032 is an abundant number, since it is smaller than the sum of its proper divisors (33486721368).

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

20331223032 is a wasteful number, since it uses less digits than its factorization.

20331223032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49831455 (or 49831451 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20331223032 its reverse (23032213302), we get a palindrome (43363436334).

The spelling of 20331223032 in words is "twenty billion, three hundred thirty-one million, two hundred twenty-three thousand, thirty-two".