204103332020 has 48 divisors (see below), whose sum is σ = 489875879808. Its totient is φ = 69974302080.

The previous prime is 204103332019. The next prime is 204103332071. The reversal of 204103332020 is 20233301402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 204103331983 and 204103332001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3506555 + ... + 3564285.

It is an arithmetic number, because the mean of its divisors is an integer number (10205747496).

Almost surely, 2^204103332020 is an apocalyptic number.

204103332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204103332020 is an abundant number, since it is smaller than the sum of its proper divisors (285772547788).

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

204103332020 is a wasteful number, since it uses less digits than its factorization.

204103332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83000 (or 82998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 204103332020 its reverse (20233301402), we get a palindrome (224336633422).

The spelling of 204103332020 in words is "two hundred four billion, one hundred three million, three hundred thirty-two thousand, twenty".