13113424 has 20 divisors (see below), whose sum is σ = 25635636. Its totient is φ = 6497792.

The previous prime is 13113413. The next prime is 13113431. The reversal of 13113424 is 42431131.

It can be written as a sum of positive squares in 2 ways, for example, as 3920400 + 9193024 = 1980^2 + 3032^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819 + ... + 5434.

Almost surely, 2^13113424 is an apocalyptic number.

It is an amenable number.

13113424 is a deficient number, since it is larger than the sum of its proper divisors (12522212).

13113424 is a wasteful number, since it uses less digits than its factorization.

13113424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374 (or 7368 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 13113424 is about 3621.2461943370. The cubic root of 13113424 is about 235.8153300140.

Adding to 13113424 its reverse (42431131), we get a palindrome (55544555).

The spelling of 13113424 in words is "thirteen million, one hundred thirteen thousand, four hundred twenty-four".