204124113 has 6 divisors (see below), whose sum is σ = 294845954. Its totient is φ = 136082736.

The previous prime is 204124099. The next prime is 204124157. The reversal of 204124113 is 311421402.

It can be written as a sum of positive squares in only one way, i.e., 130713489 + 73410624 = 11433^2 + 8568^2 .

It is not a de Polignac number, because 204124113 - 2⁴ = 204124097 is a prime.

It is a super-4 number, since 4×204124113⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204124213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11340220 + ... + 11340237.

Almost surely, 2^204124113 is an apocalyptic number.

It is an amenable number.

204124113 is a deficient number, since it is larger than the sum of its proper divisors (90721841).

204124113 is a wasteful number, since it uses less digits than its factorization.

204124113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680463 (or 22680460 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 204124113 is about 14287.2010204938. The cubic root of 204124113 is about 588.7958905092.

Adding to 204124113 its reverse (311421402), we get a palindrome (515545515).

The spelling of 204124113 in words is "two hundred four million, one hundred twenty-four thousand, one hundred thirteen".