243203450055203 has 16 divisors (see below), whose sum is σ = 269890879651200. Its totient is φ = 217281280106880.

The previous prime is 243203450055199. The next prime is 243203450055253. The reversal of 243203450055203 is 302550054302342.

It is not a de Polignac number, because 243203450055203 - 2² = 243203450055199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243203450055253) 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, 54228518 + ... + 58541771.

It is an arithmetic number, because the mean of its divisors is an integer number (16868179978200).

Almost surely, 2^{243203450055203} is an apocalyptic number.

243203450055203 is a deficient number, since it is larger than the sum of its proper divisors (26687429595997).

243203450055203 is a wasteful number, since it uses less digits than its factorization.

243203450055203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112773682.

The product of its (nonzero) digits is 432000, while the sum is 38.

The spelling of 243203450055203 in words is "two hundred forty-three trillion, two hundred three billion, four hundred fifty million, fifty-five thousand, two hundred three".