13311224 has 16 divisors (see below), whose sum is σ = 25567920. Its totient is φ = 6493120.

The previous prime is 13311223. The next prime is 13311239. The reversal of 13311224 is 42211331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311223) 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 3 ways as a sum of consecutive naturals, for example, 19964 + ... + 20619.

It is an arithmetic number, because the mean of its divisors is an integer number (1597995).

Almost surely, 2^13311224 is an apocalyptic number.

It is an amenable number.

13311224 is a deficient number, since it is larger than the sum of its proper divisors (12256696).

13311224 is a wasteful number, since it uses less digits than its factorization.

13311224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40630 (or 40626 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 13311224 is about 3648.4550154826. The cubic root of 13311224 is about 236.9950802209.

Adding to 13311224 its reverse (42211331), we get a palindrome (55522555).

The spelling of 13311224 in words is "thirteen million, three hundred eleven thousand, two hundred twenty-four".