20032421204 has 12 divisors (see below), whose sum is σ = 35403834228. Its totient is φ = 9917040000.

The previous prime is 20032421197. The next prime is 20032421207. The reversal of 20032421204 is 40212423002.

It can be written as a sum of positive squares in 2 ways, for example, as 9206018704 + 10826402500 = 95948^2 + 104050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032421207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24792197 + ... + 24793004.

It is an arithmetic number, because the mean of its divisors is an integer number (2950319519).

Almost surely, 2^20032421204 is an apocalyptic number.

It is an amenable number.

20032421204 is a deficient number, since it is larger than the sum of its proper divisors (15371413024).

20032421204 is a wasteful number, since it uses less digits than its factorization.

20032421204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49585306 (or 49585304 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20032421204 its reverse (40212423002), we get a palindrome (60244844206).

The spelling of 20032421204 in words is "twenty billion, thirty-two million, four hundred twenty-one thousand, two hundred four".