13320121 has 8 divisors (see below), whose sum is σ = 14364000. Its totient is φ = 12310560.

The previous prime is 13320113. The next prime is 13320157. The reversal of 13320121 is 12102331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13320121 - 2³ = 13320113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13320191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7771 + ... + 9328.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^13320121 is an apocalyptic number.

It is an amenable number.

13320121 is a deficient number, since it is larger than the sum of its proper divisors (1043879).

13320121 is a wasteful number, since it uses less digits than its factorization.

13320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17159.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13320121 is about 3649.6740950392. The cubic root of 13320121 is about 237.0478696471.

Adding to 13320121 its reverse (12102331), we get a palindrome (25422452).

The spelling of 13320121 in words is "thirteen million, three hundred twenty thousand, one hundred twenty-one".