204124331 has 4 divisors (see below), whose sum is σ = 205682664. Its totient is φ = 202566000.

The previous prime is 204124289. The next prime is 204124339. The reversal of 204124331 is 133421402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204124331 - 2¹⁸ = 203862187 is a prime.

It is a super-2 number, since 2×204124331² = 83333485012395122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204124339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778970 + ... + 779231.

It is an arithmetic number, because the mean of its divisors is an integer number (51420666).

Almost surely, 2^204124331 is an apocalyptic number.

204124331 is a deficient number, since it is larger than the sum of its proper divisors (1558333).

204124331 is a wasteful number, since it uses less digits than its factorization.

204124331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558332.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 204124331 is about 14287.2086496978. The cubic root of 204124331 is about 588.7961001161.

Adding to 204124331 its reverse (133421402), we get a palindrome (337545733).

The spelling of 204124331 in words is "two hundred four million, one hundred twenty-four thousand, three hundred thirty-one".