13003123 has 4 divisors (see below), whose sum is σ = 14860720. Its totient is φ = 11145528.

The previous prime is 13003099. The next prime is 13003127. The reversal of 13003123 is 32130031.

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 13003123 - 2⁵ = 13003091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13003127) 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, 928788 + ... + 928801.

It is an arithmetic number, because the mean of its divisors is an integer number (3715180).

Almost surely, 2^13003123 is an apocalyptic number.

13003123 is a deficient number, since it is larger than the sum of its proper divisors (1857597).

13003123 is an equidigital number, since it uses as much as digits as its factorization.

13003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857596.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 13003123 is about 3605.9843316354. The cubic root of 13003123 is about 235.1522960292.

Adding to 13003123 its reverse (32130031), we get a palindrome (45133154).

The spelling of 13003123 in words is "thirteen million, three thousand, one hundred twenty-three".