13431013320 has 64 divisors (see below), whose sum is σ = 41382054720. Its totient is φ = 3484802304.

The previous prime is 13431013237. The next prime is 13431013361. The reversal of 13431013320 is 2331013431.

13431013320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 1508062 + ... + 1516941.

It is an arithmetic number, because the mean of its divisors is an integer number (646594605).

Almost surely, 2^13431013320 is an apocalyptic number.

13431013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431013320 is an abundant number, since it is smaller than the sum of its proper divisors (27951041400).

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

13431013320 is a wasteful number, since it uses less digits than its factorization.

13431013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025054 (or 3025050 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13431013320 its reverse (2331013431), we get a palindrome (15762026751).

The spelling of 13431013320 in words is "thirteen billion, four hundred thirty-one million, thirteen thousand, three hundred twenty".