13211315 has 16 divisors (see below), whose sum is σ = 17817408. Its totient is φ = 9330816.

The previous prime is 13211311. The next prime is 13211323. The reversal of 13211315 is 51311231.

It is a cyclic number.

It is not a de Polignac number, because 13211315 - 2² = 13211311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13211293 and 13211302.

It is not an unprimeable number, because it can be changed into a prime (13211311) 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 in 15 ways as a sum of consecutive naturals, for example, 2924 + ... + 5913.

It is an arithmetic number, because the mean of its divisors is an integer number (1113588).

Almost surely, 2^13211315 is an apocalyptic number.

13211315 is a deficient number, since it is larger than the sum of its proper divisors (4606093).

13211315 is a wasteful number, since it uses less digits than its factorization.

13211315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8878.

The product of its digits is 90, while the sum is 17.

The square root of 13211315 is about 3634.7372669837. The cubic root of 13211315 is about 236.4006588278.

Adding to 13211315 its reverse (51311231), we get a palindrome (64522546).

The spelling of 13211315 in words is "thirteen million, two hundred eleven thousand, three hundred fifteen".