12503117 has 4 divisors (see below), whose sum is σ = 13639776. Its totient is φ = 11366460.

The previous prime is 12503059. The next prime is 12503131. The reversal of 12503117 is 71130521.

12503117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 12503117 - 2¹⁰ = 12502093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568313 + ... + 568334.

It is an arithmetic number, because the mean of its divisors is an integer number (3409944).

Almost surely, 2^12503117 is an apocalyptic number.

It is an amenable number.

12503117 is a deficient number, since it is larger than the sum of its proper divisors (1136659).

12503117 is a wasteful number, since it uses less digits than its factorization.

12503117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136658.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12503117 is about 3535.9746888234. The cubic root of 12503117 is about 232.0987305206.

Adding to 12503117 its reverse (71130521), we get a palindrome (83633638).

The spelling of 12503117 in words is "twelve million, five hundred three thousand, one hundred seventeen".