20043012432 has 80 divisors (see below), whose sum is σ = 52332642560. Its totient is φ = 6609600000.

The previous prime is 20043012403. The next prime is 20043012439. The reversal of 20043012432 is 23421034002.

It is a junction number, because it is equal to n+sod(n) for n = 20043012399 and 20043012408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043012439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3926682 + ... + 3931782.

It is an arithmetic number, because the mean of its divisors is an integer number (654158032).

Almost surely, 2^20043012432 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 20043012432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26166321280).

20043012432 is an abundant number, since it is smaller than the sum of its proper divisors (32289630128).

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

20043012432 is a wasteful number, since it uses less digits than its factorization.

20043012432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972 (or 5966 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20043012432 its reverse (23421034002), we get a palindrome (43464046434).

The spelling of 20043012432 in words is "twenty billion, forty-three million, twelve thousand, four hundred thirty-two".