204273502311 has 4 divisors (see below), whose sum is σ = 272364669752. Its totient is φ = 136182334872.

The previous prime is 204273502291. The next prime is 204273502313. The reversal of 204273502311 is 113205372402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 204273502311 - 2¹³ = 204273494119 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 (204273502313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34045583716 + ... + 34045583721.

It is an arithmetic number, because the mean of its divisors is an integer number (68091167438).

Almost surely, 2^204273502311 is an apocalyptic number.

204273502311 is a deficient number, since it is larger than the sum of its proper divisors (68091167441).

204273502311 is an equidigital number, since it uses as much as digits as its factorization.

204273502311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68091167440.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 204273502311 its reverse (113205372402), we get a palindrome (317478874713).

The spelling of 204273502311 in words is "two hundred four billion, two hundred seventy-three million, five hundred two thousand, three hundred eleven".