13320440121340 has 48 divisors (see below), whose sum is σ = 32122018293120. Its totient is φ = 4588859753280.

The previous prime is 13320440121299. The next prime is 13320440121349. The reversal of 13320440121340 is 4312104402331.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13320440121299 and 13320440121308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320440121349) 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, 1593349902 + ... + 1593358261.

It is an arithmetic number, because the mean of its divisors is an integer number (669208714440).

Almost surely, 2^{13320440121340} is an apocalyptic number.

13320440121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320440121340 is an abundant number, since it is smaller than the sum of its proper divisors (18801578171780).

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

13320440121340 is a wasteful number, since it uses less digits than its factorization.

13320440121340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186708202 (or 3186708200 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13320440121340 its reverse (4312104402331), we get a palindrome (17632544523671).

The spelling of 13320440121340 in words is "thirteen trillion, three hundred twenty billion, four hundred forty million, one hundred twenty-one thousand, three hundred forty".