13013223 has 4 divisors (see below), whose sum is σ = 17350968. Its totient is φ = 8675480.

The previous prime is 13013197. The next prime is 13013227. The reversal of 13013223 is 32231031.

13013223 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 13013223 - 2¹² = 13009127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2168868 + ... + 2168873.

It is an arithmetic number, because the mean of its divisors is an integer number (4337742).

Almost surely, 2^13013223 is an apocalyptic number.

13013223 is a deficient number, since it is larger than the sum of its proper divisors (4337745).

13013223 is an equidigital number, since it uses as much as digits as its factorization.

13013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337744.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13013223 is about 3607.3845095859. The cubic root of 13013223 is about 235.2131640614.

Adding to 13013223 its reverse (32231031), we get a palindrome (45244254).

The spelling of 13013223 in words is "thirteen million, thirteen thousand, two hundred twenty-three".