12012503 has 16 divisors (see below), whose sum is σ = 13132800. Its totient is φ = 10951200.

The previous prime is 12012493. The next prime is 12012521. The reversal of 12012503 is 30521021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12012503 - 2⁴ = 12012487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12014503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79478 + ... + 79628.

It is an arithmetic number, because the mean of its divisors is an integer number (820800).

Almost surely, 2^12012503 is an apocalyptic number.

12012503 is a deficient number, since it is larger than the sum of its proper divisors (1120297).

12012503 is a wasteful number, since it uses less digits than its factorization.

12012503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 12012503 is about 3465.9057979120. The cubic root of 12012503 is about 229.0223340345.

Adding to 12012503 its reverse (30521021), we get a palindrome (42533524).

The spelling of 12012503 in words is "twelve million, twelve thousand, five hundred three".