12124532455439 has 2 divisors, whose sum is σ = 12124532455440. Its totient is φ = 12124532455438.

The previous prime is 12124532455423. The next prime is 12124532455471. The reversal of 12124532455439 is 93455423542121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12124532455439 - 2⁴ = 12124532455423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12124532454439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062266227719 + 6062266227720.

It is an arithmetic number, because the mean of its divisors is an integer number (6062266227720).

Almost surely, 2^{12124532455439} is an apocalyptic number.

12124532455439 is a deficient number, since it is larger than the sum of its proper divisors (1).

12124532455439 is an equidigital number, since it uses as much as digits as its factorization.

12124532455439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 50.

The spelling of 12124532455439 in words is "twelve trillion, one hundred twenty-four billion, five hundred thirty-two million, four hundred fifty-five thousand, four hundred thirty-nine".