12993647243 has 2 divisors, whose sum is σ = 12993647244. Its totient is φ = 12993647242.

The previous prime is 12993647197. The next prime is 12993647291. The reversal of 12993647243 is 34274639921.

12993647243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (34274639921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12993647243 - 2¹⁰ = 12993646219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12993647191 and 12993647200.

It is not a weakly prime, because it can be changed into another prime (12993647543) 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 as a sum of consecutive naturals, namely, 6496823621 + 6496823622.

It is an arithmetic number, because the mean of its divisors is an integer number (6496823622).

Almost surely, 2^12993647243 is an apocalyptic number.

12993647243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12993647243 is an equidigital number, since it uses as much as digits as its factorization.

12993647243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 50.

The spelling of 12993647243 in words is "twelve billion, nine hundred ninety-three million, six hundred forty-seven thousand, two hundred forty-three".