12003424402 has 4 divisors (see below), whose sum is σ = 18005136606. Its totient is φ = 6001712200.

The previous prime is 12003424397. The next prime is 12003424441. The reversal of 12003424402 is 20442430021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7170533041 + 4832891361 = 84679^2 + 69519^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000856099 + ... + 3000856102.

Almost surely, 2^12003424402 is an apocalyptic number.

12003424402 is a deficient number, since it is larger than the sum of its proper divisors (6001712204).

12003424402 is an equidigital number, since it uses as much as digits as its factorization.

12003424402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6001712203.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12003424402 its reverse (20442430021), we get a palindrome (32445854423).

The spelling of 12003424402 in words is "twelve billion, three million, four hundred twenty-four thousand, four hundred two".