12421103009 has 4 divisors (see below), whose sum is σ = 14195546304. Its totient is φ = 10646659716.

The previous prime is 12421103003. The next prime is 12421103059. The reversal of 12421103009 is 90030112421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12421103009 - 2⁸ = 12421102753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12421103003) 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 in 3 ways as a sum of consecutive naturals, for example, 887221637 + ... + 887221650.

It is an arithmetic number, because the mean of its divisors is an integer number (3548886576).

Almost surely, 2^12421103009 is an apocalyptic number.

It is an amenable number.

12421103009 is a deficient number, since it is larger than the sum of its proper divisors (1774443295).

12421103009 is an equidigital number, since it uses as much as digits as its factorization.

12421103009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774443294.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 12421103009 in words is "twelve billion, four hundred twenty-one million, one hundred three thousand, nine".