12420324241243 has 2 divisors, whose sum is σ = 12420324241244. Its totient is φ = 12420324241242.

The previous prime is 12420324241163. The next prime is 12420324241277. The reversal of 12420324241243 is 34214242302421.

It is an a-pointer prime, because the next prime (12420324241277) can be obtained adding 12420324241243 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12420324241243 is a prime.

It is a super-3 number, since 3×12420324241243³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12420324241199 and 12420324241208.

It is not a weakly prime, because it can be changed into another prime (12420324241543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210162120621 + 6210162120622.

It is an arithmetic number, because the mean of its divisors is an integer number (6210162120622).

Almost surely, 2^{12420324241243} is an apocalyptic number.

12420324241243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420324241243 is an equidigital number, since it uses as much as digits as its factorization.

12420324241243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 12420324241243 its reverse (34214242302421), we get a palindrome (46634566543664).

The spelling of 12420324241243 in words is "twelve trillion, four hundred twenty billion, three hundred twenty-four million, two hundred forty-one thousand, two hundred forty-three".