204311355 has 32 divisors (see below), whose sum is σ = 347001408. Its totient is φ = 102297600.

The previous prime is 204311353. The next prime is 204311383. The reversal of 204311355 is 553113402.

It is not a de Polignac number, because 204311355 - 2¹ = 204311353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204311353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137215 + ... + 138695.

It is an arithmetic number, because the mean of its divisors is an integer number (10843794).

Almost surely, 2^204311355 is an apocalyptic number.

204311355 is a deficient number, since it is larger than the sum of its proper divisors (142690053).

204311355 is a wasteful number, since it uses less digits than its factorization.

204311355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 204311355 is about 14293.7523065149. The cubic root of 204311355 is about 588.9758686378.

Adding to 204311355 its reverse (553113402), we get a palindrome (757424757).

The spelling of 204311355 in words is "two hundred four million, three hundred eleven thousand, three hundred fifty-five".