204343434311 has 4 divisors (see below), whose sum is σ = 205198428000. Its totient is φ = 203488440624.

The previous prime is 204343434299. The next prime is 204343434319. The reversal of 204343434311 is 113434343402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204343434311 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 (204343434319) 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, 427496486 + ... + 427496963.

It is an arithmetic number, because the mean of its divisors is an integer number (51299607000).

Almost surely, 2^204343434311 is an apocalyptic number.

204343434311 is a deficient number, since it is larger than the sum of its proper divisors (854993689).

204343434311 is an equidigital number, since it uses as much as digits as its factorization.

204343434311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854993688.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 204343434311 its reverse (113434343402), we get a palindrome (317777777713).

Subtracting from 204343434311 its reverse (113434343402), we obtain a palindrome (90909090909).

The spelling of 204343434311 in words is "two hundred four billion, three hundred forty-three million, four hundred thirty-four thousand, three hundred eleven".