204231442243 has 2 divisors, whose sum is σ = 204231442244. Its totient is φ = 204231442242.

The previous prime is 204231442241. The next prime is 204231442279. The reversal of 204231442243 is 342244132402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204231442243 - 2¹ = 204231442241 is a prime.

Together with 204231442241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (204231442241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102115721121 + 102115721122.

It is an arithmetic number, because the mean of its divisors is an integer number (102115721122).

Almost surely, 2^204231442243 is an apocalyptic number.

204231442243 is a deficient number, since it is larger than the sum of its proper divisors (1).

204231442243 is an equidigital number, since it uses as much as digits as its factorization.

204231442243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 204231442243 its reverse (342244132402), we get a palindrome (546475574645).

The spelling of 204231442243 in words is "two hundred four billion, two hundred thirty-one million, four hundred forty-two thousand, two hundred forty-three".