13021207 has 2 divisors, whose sum is σ = 13021208. Its totient is φ = 13021206.

The previous prime is 13021189. The next prime is 13021219. The reversal of 13021207 is 70212031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13021207 - 2⁷ = 13021079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13021247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510603 + 6510604.

It is an arithmetic number, because the mean of its divisors is an integer number (6510604).

Almost surely, 2^13021207 is an apocalyptic number.

13021207 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021207 is an equidigital number, since it uses as much as digits as its factorization.

13021207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 13021207 is about 3608.4909588358. The cubic root of 13021207 is about 235.2612576550.

Adding to 13021207 its reverse (70212031), we get a palindrome (83233238).

The spelling of 13021207 in words is "thirteen million, twenty-one thousand, two hundred seven".