243311200241 has 2 divisors, whose sum is σ = 243311200242. Its totient is φ = 243311200240.

The previous prime is 243311200219. The next prime is 243311200243. The reversal of 243311200241 is 142002113342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243152541025 + 158659216 = 493105^2 + 12596^2 .

It is a cyclic number.

It is not a de Polignac number, because 243311200241 - 2³⁰ = 242237458417 is a prime.

Together with 243311200243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243311200243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121655600120 + 121655600121.

It is an arithmetic number, because the mean of its divisors is an integer number (121655600121).

Almost surely, 2^243311200241 is an apocalyptic number.

It is an amenable number.

243311200241 is a deficient number, since it is larger than the sum of its proper divisors (1).

243311200241 is an equidigital number, since it uses as much as digits as its factorization.

243311200241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243311200241 its reverse (142002113342), we get a palindrome (385313313583).

The spelling of 243311200241 in words is "two hundred forty-three billion, three hundred eleven million, two hundred thousand, two hundred forty-one".