13013213 has 4 divisors (see below), whose sum is σ = 13100700. Its totient is φ = 12925728.

The previous prime is 13013197. The next prime is 13013227. The reversal of 13013213 is 31231031.

13013213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2010724 + 11002489 = 1418^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 13013213 - 2⁴ = 13013197 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 (13013243) 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, 43520 + ... + 43817.

It is an arithmetic number, because the mean of its divisors is an integer number (3275175).

Almost surely, 2^13013213 is an apocalyptic number.

It is an amenable number.

13013213 is a deficient number, since it is larger than the sum of its proper divisors (87487).

13013213 is an equidigital number, since it uses as much as digits as its factorization.

13013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87486.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13013213 is about 3607.3831235398. The cubic root of 13013213 is about 235.2131038116.

Adding to 13013213 its reverse (31231031), we get a palindrome (44244244).

The spelling of 13013213 in words is "thirteen million, thirteen thousand, two hundred thirteen".