204046320243 has 32 divisors (see below), whose sum is σ = 290183749632. Its totient is φ = 127236938400.

The previous prime is 204046320211. The next prime is 204046320271. The reversal of 204046320243 is 342023640402.

204046320243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204046320243 - 2⁵ = 204046320211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204046320243.

It is not an unprimeable number, because it can be changed into a prime (204046320343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3770688 + ... + 3824418.

It is an arithmetic number, because the mean of its divisors is an integer number (9068242176).

Almost surely, 2^204046320243 is an apocalyptic number.

204046320243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204046320243 is a deficient number, since it is larger than the sum of its proper divisors (86137429389).

204046320243 is a wasteful number, since it uses less digits than its factorization.

204046320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54975.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 204046320243 its reverse (342023640402), we get a palindrome (546069960645).

The spelling of 204046320243 in words is "two hundred four billion, forty-six million, three hundred twenty thousand, two hundred forty-three".