12144420413 has 2 divisors, whose sum is σ = 12144420414. Its totient is φ = 12144420412.

The previous prime is 12144420377. The next prime is 12144420419. The reversal of 12144420413 is 31402444121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8223406489 + 3921013924 = 90683^2 + 62618^2 .

It is an emirp because it is prime and its reverse (31402444121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12144420413 - 2²⁰ = 12143371837 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12144420419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072210206 + 6072210207.

It is an arithmetic number, because the mean of its divisors is an integer number (6072210207).

Almost surely, 2^12144420413 is an apocalyptic number.

It is an amenable number.

12144420413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12144420413 is an equidigital number, since it uses as much as digits as its factorization.

12144420413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12144420413 its reverse (31402444121), we get a palindrome (43546864534).

The spelling of 12144420413 in words is "twelve billion, one hundred forty-four million, four hundred twenty thousand, four hundred thirteen".