13223503 has 4 divisors (see below), whose sum is σ = 13292928. Its totient is φ = 13154080.

The previous prime is 13223473. The next prime is 13223527. The reversal of 13223503 is 30532231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30532231 = 137 ⋅222863.

It is a cyclic number.

It is not a de Polignac number, because 13223503 - 2⁵ = 13223471 is a prime.

It is a super-2 number, since 2×13223503² = 349722063182018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223593) 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, 34426 + ... + 34807.

It is an arithmetic number, because the mean of its divisors is an integer number (3323232).

Almost surely, 2^13223503 is an apocalyptic number.

13223503 is a deficient number, since it is larger than the sum of its proper divisors (69425).

13223503 is an equidigital number, since it uses as much as digits as its factorization.

13223503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69424.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13223503 is about 3636.4134803402. The cubic root of 13223503 is about 236.4733330382.

Adding to 13223503 its reverse (30532231), we get a palindrome (43755734).

The spelling of 13223503 in words is "thirteen million, two hundred twenty-three thousand, five hundred three".