13313213 has 4 divisors (see below), whose sum is σ = 13324320. Its totient is φ = 13302108.

The previous prime is 13313207. The next prime is 13313221. The reversal of 13313213 is 31231331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31231331 = 1019 ⋅30649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13313213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13313191 and 13313200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313203) 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, 3503 + ... + 6236.

It is an arithmetic number, because the mean of its divisors is an integer number (3331080).

Almost surely, 2^13313213 is an apocalyptic number.

It is an amenable number.

13313213 is a deficient number, since it is larger than the sum of its proper divisors (11107).

13313213 is an equidigital number, since it uses as much as digits as its factorization.

13313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106.

The product of its digits is 162, while the sum is 17.

The square root of 13313213 is about 3648.7275864334. The cubic root of 13313213 is about 237.0068837871.

Adding to 13313213 its reverse (31231331), we get a palindrome (44544544).

The spelling of 13313213 in words is "thirteen million, three hundred thirteen thousand, two hundred thirteen".