204243124203 has 12 divisors (see below), whose sum is σ = 295456217160. Its totient is φ = 135959757696.

The previous prime is 204243124177. The next prime is 204243124247. The reversal of 204243124203 is 302421342402.

204243124203 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 431 + 24 + 203 = 666.

It is not a de Polignac number, because 204243124203 - 2²⁰ = 204242075627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204243124303) 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, 16854033 + ... + 16866146.

It is an arithmetic number, because the mean of its divisors is an integer number (24621351430).

Almost surely, 2^204243124203 is an apocalyptic number.

204243124203 is a deficient number, since it is larger than the sum of its proper divisors (91213092957).

204243124203 is a wasteful number, since it uses less digits than its factorization.

204243124203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33720858 (or 33720855 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 204243124203 its reverse (302421342402), we get a palindrome (506664466605).

The spelling of 204243124203 in words is "two hundred four billion, two hundred forty-three million, one hundred twenty-four thousand, two hundred three".