20003230992 has 80 divisors (see below), whose sum is σ = 52253744832. Its totient is φ = 6593241600.

The previous prime is 20003230991. The next prime is 20003231011. The reversal of 20003230992 is 29903230002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20003230991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4588878 + ... + 4593234.

Almost surely, 2^20003230992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003230992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26126872416).

20003230992 is an abundant number, since it is smaller than the sum of its proper divisors (32250513840).

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

20003230992 is a wasteful number, since it uses less digits than its factorization.

20003230992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416 (or 5410 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

Adding to 20003230992 its reverse (29903230002), we get a palindrome (49906460994).

The spelling of 20003230992 in words is "twenty billion, three million, two hundred thirty thousand, nine hundred ninety-two".