204243241253323 has 16 divisors (see below), whose sum is σ = 223250921300736. Its totient is φ = 186013564830720.

The previous prime is 204243241253279. The next prime is 204243241253341. The reversal of 204243241253323 is 323352142342402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204243241253323 - 2⁹ = 204243241252811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204243241253353) 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, 8235186 + ... + 21824407.

It is an arithmetic number, because the mean of its divisors is an integer number (13953182581296).

Almost surely, 2^{204243241253323} is an apocalyptic number.

204243241253323 is a deficient number, since it is larger than the sum of its proper divisors (19007680047413).

204243241253323 is a wasteful number, since it uses less digits than its factorization.

204243241253323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30072534.

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 204243241253323 its reverse (323352142342402), we get a palindrome (527595383595725).

The spelling of 204243241253323 in words is "two hundred four trillion, two hundred forty-three billion, two hundred forty-one million, two hundred fifty-three thousand, three hundred twenty-three".