13211347 has 2 divisors, whose sum is σ = 13211348. Its totient is φ = 13211346.

The previous prime is 13211323. The next prime is 13211351. The reversal of 13211347 is 74311231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13211347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13211357) 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 as a sum of consecutive naturals, namely, 6605673 + 6605674.

It is an arithmetic number, because the mean of its divisors is an integer number (6605674).

Almost surely, 2^13211347 is an apocalyptic number.

13211347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211347 is an equidigital number, since it uses as much as digits as its factorization.

13211347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 13211347 is about 3634.7416689498. The cubic root of 13211347 is about 236.4008496948.

Adding to 13211347 its reverse (74311231), we get a palindrome (87522578).

The spelling of 13211347 in words is "thirteen million, two hundred eleven thousand, three hundred forty-seven".