12412421389 has 2 divisors, whose sum is σ = 12412421390. Its totient is φ = 12412421388.

The previous prime is 12412421387. The next prime is 12412421447. The reversal of 12412421389 is 98312421421.

12412421389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12412188100 + 233289 = 111410^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 12412421389 - 2¹ = 12412421387 is a prime.

Together with 12412421387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12412421387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6206210694 + 6206210695.

It is an arithmetic number, because the mean of its divisors is an integer number (6206210695).

Almost surely, 2^12412421389 is an apocalyptic number.

It is an amenable number.

12412421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12412421389 is an equidigital number, since it uses as much as digits as its factorization.

12412421389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The spelling of 12412421389 in words is "twelve billion, four hundred twelve million, four hundred twenty-one thousand, three hundred eighty-nine".