204311241 has 24 divisors (see below), whose sum is σ = 313526304. Its totient is φ = 132878880.

The previous prime is 204311227. The next prime is 204311249. The reversal of 204311241 is 142113402.

It is a de Polignac number, because none of the positive numbers 2^k-204311241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204311249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291 + ... + 20216.

It is an arithmetic number, because the mean of its divisors is an integer number (13063596).

Almost surely, 2^204311241 is an apocalyptic number.

It is an amenable number.

204311241 is a deficient number, since it is larger than the sum of its proper divisors (109215063).

204311241 is an equidigital number, since it uses as much as digits as its factorization.

204311241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20563 (or 20551 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 204311241 is about 14293.7483187581. The cubic root of 204311241 is about 588.9757590937.

Adding to 204311241 its reverse (142113402), we get a palindrome (346424643).

The spelling of 204311241 in words is "two hundred four million, three hundred eleven thousand, two hundred forty-one".