13311320 has 32 divisors (see below), whose sum is σ = 32674320. Its totient is φ = 4840320.

The previous prime is 13311317. The next prime is 13311349. The reversal of 13311320 is 2311331.

13311320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13311295 and 13311304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14687 + ... + 15566.

Almost surely, 2^13311320 is an apocalyptic number.

13311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311320 is an abundant number, since it is smaller than the sum of its proper divisors (19363000).

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

13311320 is a wasteful number, since it uses less digits than its factorization.

13311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30275 (or 30271 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13311320 is about 3648.4681717126. The cubic root of 13311320 is about 236.9956499525.

Adding to 13311320 its reverse (2311331), we get a palindrome (15622651).

It can be divided in two parts, 13311 and 320, that added together give a palindrome (13631).

The spelling of 13311320 in words is "thirteen million, three hundred eleven thousand, three hundred twenty".