13230391 has 2 divisors, whose sum is σ = 13230392. Its totient is φ = 13230390.

The previous prime is 13230389. The next prime is 13230419. The reversal of 13230391 is 19303231.

13230391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (19303231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13230391 - 2¹ = 13230389 is a prime.

Together with 13230389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13230341) 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, 6615195 + 6615196.

It is an arithmetic number, because the mean of its divisors is an integer number (6615196).

Almost surely, 2^13230391 is an apocalyptic number.

13230391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13230391 is an equidigital number, since it uses as much as digits as its factorization.

13230391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13230391 is about 3637.3604440583. The cubic root of 13230391 is about 236.5143848328.

The spelling of 13230391 in words is "thirteen million, two hundred thirty thousand, three hundred ninety-one".