13321111 has 2 divisors, whose sum is σ = 13321112. Its totient is φ = 13321110.

The previous prime is 13321097. The next prime is 13321127. The reversal of 13321111 is 11112331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13321111 - 2¹¹ = 13319063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13321091 and 13321100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321151) 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, 6660555 + 6660556.

It is an arithmetic number, because the mean of its divisors is an integer number (6660556).

Almost surely, 2^13321111 is an apocalyptic number.

13321111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321111 is an equidigital number, since it uses as much as digits as its factorization.

13321111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18, while the sum is 13.

The square root of 13321111 is about 3649.8097210677. The cubic root of 13321111 is about 237.0537422559.

Adding to 13321111 its reverse (11112331), we get a palindrome (24433442).

The spelling of 13321111 in words is "thirteen million, three hundred twenty-one thousand, one hundred eleven".