204123300 has 36 divisors (see below), whose sum is σ = 590597616. Its totient is φ = 54432800.

The previous prime is 204123253. The next prime is 204123331. The reversal of 204123300 is 3321402.

204123300 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 204123300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339906 + ... + 340505.

Almost surely, 2^204123300 is an apocalyptic number.

204123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204123300 is an abundant number, since it is smaller than the sum of its proper divisors (386474316).

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

204123300 is a wasteful number, since it uses less digits than its factorization.

204123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680428 (or 680421 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 204123300 is about 14287.1725684265. The cubic root of 204123300 is about 588.7951088089.

Adding to 204123300 its reverse (3321402), we get a palindrome (207444702).

The spelling of 204123300 in words is "two hundred four million, one hundred twenty-three thousand, three hundred".