243324126263 has 2 divisors, whose sum is σ = 243324126264. Its totient is φ = 243324126262.

The previous prime is 243324126217. The next prime is 243324126299. The reversal of 243324126263 is 362621423342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243324126263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243324126203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121662063131 + 121662063132.

It is an arithmetic number, because the mean of its divisors is an integer number (121662063132).

Almost surely, 2^243324126263 is an apocalyptic number.

243324126263 is a deficient number, since it is larger than the sum of its proper divisors (1).

243324126263 is an equidigital number, since it uses as much as digits as its factorization.

243324126263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 38.

The spelling of 243324126263 in words is "two hundred forty-three billion, three hundred twenty-four million, one hundred twenty-six thousand, two hundred sixty-three".