13211399 has 2 divisors, whose sum is σ = 13211400. Its totient is φ = 13211398.

The previous prime is 13211381. The next prime is 13211423. The reversal of 13211399 is 99311231.

13211399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13211399 - 2¹² = 13207303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13211699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605699 + 6605700.

It is an arithmetic number, because the mean of its divisors is an integer number (6605700).

Almost surely, 2^13211399 is an apocalyptic number.

13211399 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211399 is an equidigital number, since it uses as much as digits as its factorization.

13211399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 29.

The square root of 13211399 is about 3634.7488221334. The cubic root of 13211399 is about 236.4011598532.

The spelling of 13211399 in words is "thirteen million, two hundred eleven thousand, three hundred ninety-nine".