243203224243 has 32 divisors (see below), whose sum is σ = 298892160000. Its totient is φ = 197259511680.

The previous prime is 243203224217. The next prime is 243203224249. The reversal of 243203224243 is 342422302342.

It is not a de Polignac number, because 243203224243 - 2²⁵ = 243169669811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243203224249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5720298 + ... + 5762656.

It is an arithmetic number, because the mean of its divisors is an integer number (9340380000).

Almost surely, 2^243203224243 is an apocalyptic number.

243203224243 is a deficient number, since it is larger than the sum of its proper divisors (55688935757).

243203224243 is an equidigital number, since it uses as much as digits as its factorization.

243203224243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43280 (or 43266 counting only the distinct ones).

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

Adding to 243203224243 its reverse (342422302342), we get a palindrome (585625526585).

The spelling of 243203224243 in words is "two hundred forty-three billion, two hundred three million, two hundred twenty-four thousand, two hundred forty-three".