204321113 has 8 divisors (see below), whose sum is σ = 216639432. Its totient is φ = 192036096.

The previous prime is 204321109. The next prime is 204321119. The reversal of 204321113 is 311123402.

204321113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 141800464 + 62520649 = 11908^2 + 7907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204321113 - 2² = 204321109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 204321091 and 204321100.

It is not an unprimeable number, because it can be changed into a prime (204321119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4931 + ... + 20807.

It is an arithmetic number, because the mean of its divisors is an integer number (27079929).

Almost surely, 2^204321113 is an apocalyptic number.

It is an amenable number.

204321113 is a deficient number, since it is larger than the sum of its proper divisors (12318319).

204321113 is a wasteful number, since it uses less digits than its factorization.

204321113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16651.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 204321113 is about 14294.0936403817. The cubic root of 204321113 is about 588.9852450705.

Adding to 204321113 its reverse (311123402), we get a palindrome (515444515).

The spelling of 204321113 in words is "two hundred four million, three hundred twenty-one thousand, one hundred thirteen".