12420324241543 has 2 divisors, whose sum is σ = 12420324241544. Its totient is φ = 12420324241542.

The previous prime is 12420324241513. The next prime is 12420324241553. The reversal of 12420324241543 is 34514242302421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12420324241543 - 2³⁷ = 12282885288071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420324241513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210162120771 + 6210162120772.

It is an arithmetic number, because the mean of its divisors is an integer number (6210162120772).

Almost surely, 2^{12420324241543} is an apocalyptic number.

12420324241543 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420324241543 is an equidigital number, since it uses as much as digits as its factorization.

12420324241543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 12420324241543 its reverse (34514242302421), we get a palindrome (46934566543964).

The spelling of 12420324241543 in words is "twelve trillion, four hundred twenty billion, three hundred twenty-four million, two hundred forty-one thousand, five hundred forty-three".