12125240243423 has 2 divisors, whose sum is σ = 12125240243424. Its totient is φ = 12125240243422.

The previous prime is 12125240243419. The next prime is 12125240243447. The reversal of 12125240243423 is 32434204252121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12125240243423 - 2² = 12125240243419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12125240243923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062620121711 + 6062620121712.

It is an arithmetic number, because the mean of its divisors is an integer number (6062620121712).

Almost surely, 2^{12125240243423} is an apocalyptic number.

12125240243423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12125240243423 is an equidigital number, since it uses as much as digits as its factorization.

12125240243423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 12125240243423 its reverse (32434204252121), we get a palindrome (44559444495544).

The spelling of 12125240243423 in words is "twelve trillion, one hundred twenty-five billion, two hundred forty million, two hundred forty-three thousand, four hundred twenty-three".