204324310563 has 16 divisors (see below), whose sum is σ = 278118087840. Its totient is φ = 133383471104.

The previous prime is 204324310537. The next prime is 204324310621. The reversal of 204324310563 is 365013423402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204324310563 - 2¹⁸ = 204324048419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204324310963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181406 + ... + 1343267.

It is an arithmetic number, because the mean of its divisors is an integer number (17382380490).

Almost surely, 2^204324310563 is an apocalyptic number.

204324310563 is a deficient number, since it is larger than the sum of its proper divisors (73793777277).

204324310563 is a wasteful number, since it uses less digits than its factorization.

204324310563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525238.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 204324310563 its reverse (365013423402), we get a palindrome (569337733965).

The spelling of 204324310563 in words is "two hundred four billion, three hundred twenty-four million, three hundred ten thousand, five hundred sixty-three".