13304431140 has 384 divisors, whose sum is σ = 51377614848. Its totient is φ = 2482513920.

The previous prime is 13304431139. The next prime is 13304431157. The reversal of 13304431140 is 4113440331.

It is a self number, because there is not a number n which added to its sum of digits gives 13304431140.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2219227 + ... + 2225213.

It is an arithmetic number, because the mean of its divisors is an integer number (133795872).

Almost surely, 2^13304431140 is an apocalyptic number.

13304431140 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 13304431140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25688807424).

13304431140 is an abundant number, since it is smaller than the sum of its proper divisors (38073183708).

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

13304431140 is a wasteful number, since it uses less digits than its factorization.

13304431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067 (or 6065 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13304431140 its reverse (4113440331), we get a palindrome (17417871471).

It can be divided in two parts, 13304 and 431140, that added together give a palindrome (444444).

The spelling of 13304431140 in words is "thirteen billion, three hundred four million, four hundred thirty-one thousand, one hundred forty".