12923503 has 4 divisors (see below), whose sum is σ = 12952240. Its totient is φ = 12894768.

The previous prime is 12923489. The next prime is 12923507. The reversal of 12923503 is 30532921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12923503 - 2¹³ = 12915311 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 (12923507) 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, 13683 + ... + 14596.

It is an arithmetic number, because the mean of its divisors is an integer number (3238060).

Almost surely, 2^12923503 is an apocalyptic number.

12923503 is a deficient number, since it is larger than the sum of its proper divisors (28737).

12923503 is an equidigital number, since it uses as much as digits as its factorization.

12923503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28736.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 12923503 is about 3594.9273984324. The cubic root of 12923503 is about 234.6713559113.

It can be divided in two parts, 129 and 23503, that added together give a palindrome (23632).

The spelling of 12923503 in words is "twelve million, nine hundred twenty-three thousand, five hundred three".