13311121 has 8 divisors (see below), whose sum is σ = 13872384. Its totient is φ = 12758160.

The previous prime is 13311113. The next prime is 13311127. The reversal of 13311121 is 12111331.

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 13311121 - 2³ = 13311113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311127) 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 in 7 ways as a sum of consecutive naturals, for example, 1311 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (1734048).

Almost surely, 2^13311121 is an apocalyptic number.

It is an amenable number.

13311121 is a deficient number, since it is larger than the sum of its proper divisors (561263).

13311121 is a wasteful number, since it uses less digits than its factorization.

13311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151.

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

The square root of 13311121 is about 3648.4408998913. The cubic root of 13311121 is about 236.9944689434.

Adding to 13311121 its reverse (12111331), we get a palindrome (25422452).

The spelling of 13311121 in words is "thirteen million, three hundred eleven thousand, one hundred twenty-one".