20023231332 has 48 divisors (see below), whose sum is σ = 50361500672. Its totient is φ = 6155274240.

The previous prime is 20023231313. The next prime is 20023231367. The reversal of 20023231332 is 23313232002.

It is a junction number, because it is equal to n+sod(n) for n = 20023231299 and 20023231308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110532 + ... + 228612.

Almost surely, 2^20023231332 is an apocalyptic number.

It is an amenable number.

20023231332 is an abundant number, since it is smaller than the sum of its proper divisors (30338269340).

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

20023231332 is a wasteful number, since it uses less digits than its factorization.

20023231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119188 (or 119186 counting only the distinct ones).

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

Adding to 20023231332 its reverse (23313232002), we get a palindrome (43336463334).

The spelling of 20023231332 in words is "twenty billion, twenty-three million, two hundred thirty-one thousand, three hundred thirty-two".