204240443240323 has 24 divisors (see below), whose sum is σ = 251577852825600. Its totient is φ = 164754661655808.

The previous prime is 204240443240297. The next prime is 204240443240359. The reversal of 204240443240323 is 323042344042402.

It is a de Polignac number, because none of the positive numbers 2^k-204240443240323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204240443240423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4812193 + ... + 20775901.

It is an arithmetic number, because the mean of its divisors is an integer number (10482410534400).

Almost surely, 2^{204240443240323} is an apocalyptic number.

204240443240323 is a deficient number, since it is larger than the sum of its proper divisors (47337409585277).

204240443240323 is a wasteful number, since it uses less digits than its factorization.

204240443240323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15979099 (or 15979092 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 37.

Adding to 204240443240323 its reverse (323042344042402), we get a palindrome (527282787282725).

The spelling of 204240443240323 in words is "two hundred four trillion, two hundred forty billion, four hundred forty-three million, two hundred forty thousand, three hundred twenty-three".