204343311 has 8 divisors (see below), whose sum is σ = 272535040. Its totient is φ = 136190232.

The previous prime is 204343297. The next prime is 204343319. The reversal of 204343311 is 113343402.

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

It is not a de Polignac number, because 204343311 - 2⁹ = 204342799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204343319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6576 + ... + 21258.

It is an arithmetic number, because the mean of its divisors is an integer number (34066880).

Almost surely, 2^204343311 is an apocalyptic number.

204343311 is a deficient number, since it is larger than the sum of its proper divisors (68191729).

204343311 is a wasteful number, since it uses less digits than its factorization.

204343311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19325.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 204343311 is about 14294.8700938484. The cubic root of 204343311 is about 589.0065739497.

Adding to 204343311 its reverse (113343402), we get a palindrome (317686713).

Subtracting from 204343311 its reverse (113343402), we obtain a palindrome (90999909).

It can be divided in two parts, 2043 and 43311, that added together give a palindrome (45354).

The spelling of 204343311 in words is "two hundred four million, three hundred forty-three thousand, three hundred eleven".