12503 has 2 divisors, whose sum is σ = 12504.
Its totient is φ = 12502.
The previous prime is 12497. The next prime is 12511. The reversal of 12503 is 30521.
It can be divided in two parts, 12 and 503, that added together give a palindrome (515).
12503 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12503 - 24 = 12487 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12553) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251 + 6252.
It is an arithmetic number, because the mean of its divisors is an integer number (6252).
212503 is an apocalyptic number.
12503 is a deficient number, since it is larger than the sum of its proper divisors (1).
12503 is an equidigital number, since it uses as much as digits as its factorization.
12503 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 30, while the sum is 11.
The square root of 12503 is about 111.8168144780.
The cubic root of 12503 is about 23.2098006551.
The spelling of 12503 in words is "twelve thousand, five hundred three".