13335231520 has 96 divisors (see below), whose sum is σ = 34337120832. Its totient is φ = 4864392192.

The previous prime is 13335231487. The next prime is 13335231523. The reversal of 13335231520 is 2513253331.

13335231520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13335231523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134019 + ... + 211261.

It is an arithmetic number, because the mean of its divisors is an integer number (357678342).

Almost surely, 2^13335231520 is an apocalyptic number.

13335231520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13335231520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17168560416).

13335231520 is an abundant number, since it is smaller than the sum of its proper divisors (21001889312).

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

13335231520 is a wasteful number, since it uses less digits than its factorization.

13335231520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77354 (or 77346 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 13335231520 its reverse (2513253331), we get a palindrome (15848484851).

The spelling of 13335231520 in words is "thirteen billion, three hundred thirty-five million, two hundred thirty-one thousand, five hundred twenty".