204240413311323 has 16 divisors (see below), whose sum is σ = 274483346350080. Its totient is φ = 135080146414656.

The previous prime is 204240413311309. The next prime is 204240413311331. The reversal of 204240413311323 is 323113314042402.

It is not a de Polignac number, because 204240413311323 - 2¹⁶ = 204240413245787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204240413361323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157918603 + ... + 159206676.

It is an arithmetic number, because the mean of its divisors is an integer number (17155209146880).

Almost surely, 2^{204240413311323} is an apocalyptic number.

204240413311323 is a deficient number, since it is larger than the sum of its proper divisors (70242933038757).

204240413311323 is a wasteful number, since it uses less digits than its factorization.

204240413311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317126986.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 204240413311323 its reverse (323113314042402), we get a palindrome (527353727353725).

The spelling of 204240413311323 in words is "two hundred four trillion, two hundred forty billion, four hundred thirteen million, three hundred eleven thousand, three hundred twenty-three".