13327331 has 4 divisors (see below), whose sum is σ = 13334664. Its totient is φ = 13320000.

The previous prime is 13327297. The next prime is 13327343. The reversal of 13327331 is 13372331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13372331 = 7 ⋅1910333.

It is a cyclic number.

It is not a de Polignac number, because 13327331 - 2⁶ = 13327267 is a prime.

It is a super-2 number, since 2×13327331² = 355235503167122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13327297 and 13327306.

It is not an unprimeable number, because it can be changed into a prime (13327361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (3333666).

Almost surely, 2^13327331 is an apocalyptic number.

13327331 is a deficient number, since it is larger than the sum of its proper divisors (7333).

13327331 is an equidigital number, since it uses as much as digits as its factorization.

13327331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332.

The product of its digits is 1134, while the sum is 23.

The square root of 13327331 is about 3650.6617208391. The cubic root of 13327331 is about 237.0906321931.

Adding to 13327331 its reverse (13372331), we get a palindrome (26699662).

The spelling of 13327331 in words is "thirteen million, three hundred twenty-seven thousand, three hundred thirty-one".