13350321 has 12 divisors (see below), whose sum is σ = 20418372. Its totient is φ = 8376576.

The previous prime is 13350319. The next prime is 13350349. The reversal of 13350321 is 12305331.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 9090225 = 2064^2 + 3015^2 .

It is not a de Polignac number, because 13350321 - 2¹ = 13350319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13350294 and 13350303.

It is not an unprimeable number, because it can be changed into a prime (13350361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43476 + ... + 43781.

It is an arithmetic number, because the mean of its divisors is an integer number (1701531).

Almost surely, 2^13350321 is an apocalyptic number.

It is an amenable number.

13350321 is a deficient number, since it is larger than the sum of its proper divisors (7068051).

13350321 is a wasteful number, since it uses less digits than its factorization.

13350321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87280 (or 87277 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 13350321 is about 3653.8091083142. The cubic root of 13350321 is about 237.2268830905.

Adding to 13350321 its reverse (12305331), we get a palindrome (25655652).

The spelling of 13350321 in words is "thirteen million, three hundred fifty thousand, three hundred twenty-one".