204031311 has 8 divisors (see below), whose sum is σ = 296772864. Its totient is φ = 123655320.

The previous prime is 204031309. The next prime is 204031319. The reversal of 204031311 is 113130402.

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

It is not a de Polignac number, because 204031311 - 2¹ = 204031309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204031319) 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 7 ways as a sum of consecutive naturals, for example, 3091351 + ... + 3091416.

It is an arithmetic number, because the mean of its divisors is an integer number (37096608).

Almost surely, 2^204031311 is an apocalyptic number.

204031311 is a deficient number, since it is larger than the sum of its proper divisors (92741553).

204031311 is a wasteful number, since it uses less digits than its factorization.

204031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182781.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 204031311 is about 14283.9529192727. The cubic root of 204031311 is about 588.7066478778.

Adding to 204031311 its reverse (113130402), we get a palindrome (317161713).

Subtracting from 204031311 its reverse (113130402), we obtain a palindrome (90900909).

The spelling of 204031311 in words is "two hundred four million, thirty-one thousand, three hundred eleven".