12420389603 has 2 divisors, whose sum is σ = 12420389604. Its totient is φ = 12420389602.

The previous prime is 12420389593. The next prime is 12420389627. The reversal of 12420389603 is 30698302421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12420389603 - 2⁴ = 12420389587 is a prime.

It is not a weakly prime, because it can be changed into another prime (12420389633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210194801 + 6210194802.

It is an arithmetic number, because the mean of its divisors is an integer number (6210194802).

Almost surely, 2^12420389603 is an apocalyptic number.

12420389603 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420389603 is an equidigital number, since it uses as much as digits as its factorization.

12420389603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 12420389603 in words is "twelve billion, four hundred twenty million, three hundred eighty-nine thousand, six hundred three".