204311330 has 16 divisors (see below), whose sum is σ = 368271360. Its totient is φ = 81610992.

The previous prime is 204311311. The next prime is 204311339. The reversal of 204311330 is 33113402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204311299 and 204311308.

It is not an unprimeable number, because it can be changed into a prime (204311339) 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, 6434 + ... + 21213.

It is an arithmetic number, because the mean of its divisors is an integer number (23016960).

Almost surely, 2^204311330 is an apocalyptic number.

204311330 is a deficient number, since it is larger than the sum of its proper divisors (163960030).

204311330 is a wasteful number, since it uses less digits than its factorization.

204311330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28393.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 204311330 is about 14293.7514320069. The cubic root of 204311330 is about 588.9758446150.

Adding to 204311330 its reverse (33113402), we get a palindrome (237424732).

The spelling of 204311330 in words is "two hundred four million, three hundred eleven thousand, three hundred thirty".