13301135440 has 80 divisors (see below), whose sum is σ = 32918875200. Its totient is φ = 4983745536.

The previous prime is 13301135431. The next prime is 13301135443. The reversal of 13301135440 is 4453110331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13301135443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86119 + ... + 184441.

It is an arithmetic number, because the mean of its divisors is an integer number (411485940).

Almost surely, 2^13301135440 is an apocalyptic number.

13301135440 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 13301135440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16459437600).

13301135440 is an abundant number, since it is smaller than the sum of its proper divisors (19617739760).

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

13301135440 is a wasteful number, since it uses less digits than its factorization.

13301135440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98444 (or 98438 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13301135440 its reverse (4453110331), we get a palindrome (17754245771).

The spelling of 13301135440 in words is "thirteen billion, three hundred one million, one hundred thirty-five thousand, four hundred forty".