13213023 has 4 divisors (see below), whose sum is σ = 17617368. Its totient is φ = 8808680.

The previous prime is 13213001. The next prime is 13213043. The reversal of 13213023 is 32031231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32031231 = 3 ⋅10677077.

It is a cyclic number.

It is not a de Polignac number, because 13213023 - 2⁸ = 13212767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212993 and 13213011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213043) 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, 2202168 + ... + 2202173.

It is an arithmetic number, because the mean of its divisors is an integer number (4404342).

Almost surely, 2^13213023 is an apocalyptic number.

13213023 is a deficient number, since it is larger than the sum of its proper divisors (4404345).

13213023 is an equidigital number, since it uses as much as digits as its factorization.

13213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404344.

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

The square root of 13213023 is about 3634.9722144743. The cubic root of 13213023 is about 236.4108459269.

Adding to 13213023 its reverse (32031231), we get a palindrome (45244254).

The spelling of 13213023 in words is "thirteen million, two hundred thirteen thousand, twenty-three".