204131330120 has 16 divisors (see below), whose sum is σ = 459295492860. Its totient is φ = 81652532032.

The previous prime is 204131330033. The next prime is 204131330131. The reversal of 204131330120 is 21033131402.

It can be written as a sum of positive squares in 2 ways, for example, as 204121432804 + 9897316 = 451798^2 + 3146^2 .

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 = 204131330092 and 204131330101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2551641587 + ... + 2551641666.

Almost surely, 2^204131330120 is an apocalyptic number.

204131330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204131330120 is an abundant number, since it is smaller than the sum of its proper divisors (255164162740).

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

204131330120 is a wasteful number, since it uses less digits than its factorization.

204131330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103283264 (or 5103283260 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 204131330120 its reverse (21033131402), we get a palindrome (225164461522).

The spelling of 204131330120 in words is "two hundred four billion, one hundred thirty-one million, three hundred thirty thousand, one hundred twenty".