12403210172 has 12 divisors (see below), whose sum is σ = 21786309720. Its totient is φ = 6178550256.

The previous prime is 12403210153. The next prime is 12403210181. The reversal of 12403210172 is 27101230421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5762498 + ... + 5764649.

It is an arithmetic number, because the mean of its divisors is an integer number (1815525810).

Almost surely, 2^12403210172 is an apocalyptic number.

It is an amenable number.

12403210172 is a deficient number, since it is larger than the sum of its proper divisors (9383099548).

12403210172 is a wasteful number, since it uses less digits than its factorization.

12403210172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11527420 (or 11527418 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 12403210172 its reverse (27101230421), we get a palindrome (39504440593).

The spelling of 12403210172 in words is "twelve billion, four hundred three million, two hundred ten thousand, one hundred seventy-two".