204342113243311 has 4 divisors (see below), whose sum is σ = 204342159105000. Its totient is φ = 204342067381624.

The previous prime is 204342113243309. The next prime is 204342113243353. The reversal of 204342113243311 is 113342311243402.

It is a happy number.

204342113243311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 204342113243311 - 2¹ = 204342113243309 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 (204342183243311) 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, 15429436 + ... + 25431313.

It is an arithmetic number, because the mean of its divisors is an integer number (51085539776250).

Almost surely, 2^{204342113243311} is an apocalyptic number.

204342113243311 is a deficient number, since it is larger than the sum of its proper divisors (45861689).

204342113243311 is an equidigital number, since it uses as much as digits as its factorization.

204342113243311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45861688.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 204342113243311 its reverse (113342311243402), we get a palindrome (317684424486713).

The spelling of 204342113243311 in words is "two hundred four trillion, three hundred forty-two billion, one hundred thirteen million, two hundred forty-three thousand, three hundred eleven".