243220204241 has 8 divisors (see below), whose sum is σ = 278012269440. Its totient is φ = 208439719488.

The previous prime is 243220204207. The next prime is 243220204259. The reversal of 243220204241 is 142402022342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243220204241 - 2⁶ = 243220204177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243220204241.

It is not an unprimeable number, because it can be changed into a prime (243220204291) 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 in 7 ways as a sum of consecutive naturals, for example, 2850056 + ... + 2934153.

It is an arithmetic number, because the mean of its divisors is an integer number (34751533680).

Almost surely, 2^243220204241 is an apocalyptic number.

It is an amenable number.

243220204241 is a deficient number, since it is larger than the sum of its proper divisors (34792065199).

243220204241 is an equidigital number, since it uses as much as digits as its factorization.

243220204241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790223.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 243220204241 its reverse (142402022342), we get a palindrome (385622226583).

The spelling of 243220204241 in words is "two hundred forty-three billion, two hundred twenty million, two hundred four thousand, two hundred forty-one".