204003420120 has 48 divisors (see below), whose sum is σ = 663011116560. Its totient is φ = 54400911936.

The previous prime is 204003420079. The next prime is 204003420121. The reversal of 204003420120 is 21024300402.

204003420120 is a `hidden beast` number, since 204 + 0 + 0 + 342 + 0 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 204003420093 and 204003420102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204003420121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283337724 + ... + 283338443.

It is an arithmetic number, because the mean of its divisors is an integer number (13812731595).

Almost surely, 2^204003420120 is an apocalyptic number.

204003420120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204003420120 is an abundant number, since it is smaller than the sum of its proper divisors (459007696440).

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

204003420120 is a wasteful number, since it uses less digits than its factorization.

204003420120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566676184 (or 566676177 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 204003420120 its reverse (21024300402), we get a palindrome (225027720522).

The spelling of 204003420120 in words is "two hundred four billion, three million, four hundred twenty thousand, one hundred twenty".