204041243423 has 4 divisors (see below), whose sum is σ = 204045327168. Its totient is φ = 204037159680.

The previous prime is 204041243389. The next prime is 204041243459. The reversal of 204041243423 is 324342140402.

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 204041243423 - 2¹⁸ = 204040981279 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 (204041243023) 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, 1965986 + ... + 2067167.

It is an arithmetic number, because the mean of its divisors is an integer number (51011331792).

Almost surely, 2^204041243423 is an apocalyptic number.

204041243423 is a deficient number, since it is larger than the sum of its proper divisors (4083745).

204041243423 is an equidigital number, since it uses as much as digits as its factorization.

204041243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083744.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 204041243423 its reverse (324342140402), we get a palindrome (528383383825).

The spelling of 204041243423 in words is "two hundred four billion, forty-one million, two hundred forty-three thousand, four hundred twenty-three".