13043320 has 16 divisors (see below), whose sum is σ = 29347560. Its totient is φ = 5217312.

The previous prime is 13043309. The next prime is 13043333. The reversal of 13043320 is 2334031.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13043294 and 13043303.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 163002 + ... + 163081.

Almost surely, 2^13043320 is an apocalyptic number.

13043320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13043320 is an abundant number, since it is smaller than the sum of its proper divisors (16304240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13043320 is a wasteful number, since it uses less digits than its factorization.

13043320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326094 (or 326090 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13043320 is about 3611.5536822814. The cubic root of 13043320 is about 235.3943582206.

Adding to 13043320 its reverse (2334031), we get a palindrome (15377351).

It can be divided in two parts, 1304 and 3320, that added together give a square (4624 = 68²).

The spelling of 13043320 in words is "thirteen million, forty-three thousand, three hundred twenty".