243243434112299 has 2 divisors, whose sum is σ = 243243434112300. Its totient is φ = 243243434112298.

The previous prime is 243243434112293. The next prime is 243243434112317. The reversal of 243243434112299 is 992211434342342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243243434112299 - 2¹² = 243243434108203 is a prime.

It is a super-3 number, since 3×243243434112299³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243243434112299.

It is not a weakly prime, because it can be changed into another prime (243243434112293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121621717056149 + 121621717056150.

It is an arithmetic number, because the mean of its divisors is an integer number (121621717056150).

Almost surely, 2^{243243434112299} is an apocalyptic number.

243243434112299 is a deficient number, since it is larger than the sum of its proper divisors (1).

243243434112299 is an equidigital number, since it uses as much as digits as its factorization.

243243434112299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8957952, while the sum is 53.

The spelling of 243243434112299 in words is "two hundred forty-three trillion, two hundred forty-three billion, four hundred thirty-four million, one hundred twelve thousand, two hundred ninety-nine".