12421403024441 has 2 divisors, whose sum is σ = 12421403024442. Its totient is φ = 12421403024440.

The previous prime is 12421403024417. The next prime is 12421403024477. The reversal of 12421403024441 is 14442030412421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9999034515625 + 2422368508816 = 3162125^2 + 1556396^2 .

It is a cyclic number.

It is not a de Polignac number, because 12421403024441 - 2³⁰ = 12420329282617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12421403024398 and 12421403024407.

It is not a weakly prime, because it can be changed into another prime (12421403024741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210701512220 + 6210701512221.

It is an arithmetic number, because the mean of its divisors is an integer number (6210701512221).

Almost surely, 2^{12421403024441} is an apocalyptic number.

It is an amenable number.

12421403024441 is a deficient number, since it is larger than the sum of its proper divisors (1).

12421403024441 is an equidigital number, since it uses as much as digits as its factorization.

12421403024441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 12421403024441 its reverse (14442030412421), we get a palindrome (26863433436862).

The spelling of 12421403024441 in words is "twelve trillion, four hundred twenty-one billion, four hundred three million, twenty-four thousand, four hundred forty-one".