12420324241277 has 2 divisors, whose sum is σ = 12420324241278. Its totient is φ = 12420324241276.

The previous prime is 12420324241243. The next prime is 12420324241289. The reversal of 12420324241277 is 77214242302421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10523834450116 + 1896489791161 = 3244046^2 + 1377131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12420324241277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12420324246277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210162120638 + 6210162120639.

It is an arithmetic number, because the mean of its divisors is an integer number (6210162120639).

Almost surely, 2^{12420324241277} is an apocalyptic number.

It is an amenable number.

12420324241277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420324241277 is an equidigital number, since it uses as much as digits as its factorization.

12420324241277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 41.

Adding to 12420324241277 its reverse (77214242302421), we get a palindrome (89634566543698).

The spelling of 12420324241277 in words is "twelve trillion, four hundred twenty billion, three hundred twenty-four million, two hundred forty-one thousand, two hundred seventy-seven".