13203213 has 4 divisors (see below), whose sum is σ = 17604288. Its totient is φ = 8802140.

The previous prime is 13203209. The next prime is 13203217. The reversal of 13203213 is 31230231.

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.

It is an interprime number because it is at equal distance from previous prime (13203209) and next prime (13203217).

It is a cyclic number.

It is not a de Polignac number, because 13203213 - 2² = 13203209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13203192 and 13203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203217) 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, 2200533 + ... + 2200538.

It is an arithmetic number, because the mean of its divisors is an integer number (4401072).

Almost surely, 2^13203213 is an apocalyptic number.

It is an amenable number.

13203213 is a deficient number, since it is larger than the sum of its proper divisors (4401075).

13203213 is an equidigital number, since it uses as much as digits as its factorization.

13203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401074.

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

The square root of 13203213 is about 3633.6225725851. The cubic root of 13203213 is about 236.3523237503.

Adding to 13203213 its reverse (31230231), we get a palindrome (44433444).

The spelling of 13203213 in words is "thirteen million, two hundred three thousand, two hundred thirteen".