12543703336939 has 2 divisors, whose sum is σ = 12543703336940. Its totient is φ = 12543703336938.

The previous prime is 12543703336921. The next prime is 12543703337029. The reversal of 12543703336939 is 93963330734521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (93963330734521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12543703336939 - 2⁹ = 12543703336427 is a prime.

It is not a weakly prime, because it can be changed into another prime (12543703336639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271851668469 + 6271851668470.

It is an arithmetic number, because the mean of its divisors is an integer number (6271851668470).

Almost surely, 2^{12543703336939} is an apocalyptic number.

12543703336939 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543703336939 is an equidigital number, since it uses as much as digits as its factorization.

12543703336939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33067440, while the sum is 58.

The spelling of 12543703336939 in words is "twelve trillion, five hundred forty-three billion, seven hundred three million, three hundred thirty-six thousand, nine hundred thirty-nine".