204131113113 has 16 divisors (see below), whose sum is σ = 273162080000. Its totient is φ = 135594663120.

The previous prime is 204131113099. The next prime is 204131113141. The reversal of 204131113113 is 311311131402.

204131113113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204131113113 - 2³⁰ = 203057371289 is a prime.

It is a super-2 number, since 2×204131113113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204131113113.

It is not an unprimeable number, because it can be changed into a prime (204131123113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816498 + ... + 1036788.

It is an arithmetic number, because the mean of its divisors is an integer number (17072630000).

Almost surely, 2^204131113113 is an apocalyptic number.

It is an amenable number.

204131113113 is a deficient number, since it is larger than the sum of its proper divisors (69030966887).

204131113113 is a wasteful number, since it uses less digits than its factorization.

204131113113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221412.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 204131113113 its reverse (311311131402), we get a palindrome (515442244515).

The spelling of 204131113113 in words is "two hundred four billion, one hundred thirty-one million, one hundred thirteen thousand, one hundred thirteen".