12403112225 has 24 divisors (see below), whose sum is σ = 18183092160. Its totient is φ = 8211712320.

The previous prime is 12403112173. The next prime is 12403112243. The reversal of 12403112225 is 52221130421.

It is not a de Polignac number, because 12403112225 - 2¹⁸ = 12402850081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12403112225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1216907 + ... + 1227056.

It is an arithmetic number, because the mean of its divisors is an integer number (757628840).

Almost surely, 2^12403112225 is an apocalyptic number.

It is an amenable number.

12403112225 is a deficient number, since it is larger than the sum of its proper divisors (5779979935).

12403112225 is a wasteful number, since it uses less digits than its factorization.

12403112225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444009 (or 2444004 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12403112225 its reverse (52221130421), we get a palindrome (64624242646).

The spelling of 12403112225 in words is "twelve billion, four hundred three million, one hundred twelve thousand, two hundred twenty-five".