243204432223 has 2 divisors, whose sum is σ = 243204432224. Its totient is φ = 243204432222.

The previous prime is 243204432221. The next prime is 243204432259. The reversal of 243204432223 is 322234402342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243204432223 - 2¹ = 243204432221 is a prime.

Together with 243204432221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243204432221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121602216111 + 121602216112.

It is an arithmetic number, because the mean of its divisors is an integer number (121602216112).

Almost surely, 2^243204432223 is an apocalyptic number.

243204432223 is a deficient number, since it is larger than the sum of its proper divisors (1).

243204432223 is an equidigital number, since it uses as much as digits as its factorization.

243204432223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 243204432223 its reverse (322234402342), we get a palindrome (565438834565).

The spelling of 243204432223 in words is "two hundred forty-three billion, two hundred four million, four hundred thirty-two thousand, two hundred twenty-three".