13321240234340 has 48 divisors (see below), whose sum is σ = 28048963498752. Its totient is φ = 5314343924736.

The previous prime is 13321240234327. The next prime is 13321240234411. The reversal of 13321240234340 is 4343204212331.

13321240234340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13321240234297 and 13321240234306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18320807 + ... + 19034033.

It is an arithmetic number, because the mean of its divisors is an integer number (584353406224).

Almost surely, 2^{13321240234340} is an apocalyptic number.

13321240234340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321240234340 is an abundant number, since it is smaller than the sum of its proper divisors (14727723264412).

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

13321240234340 is a wasteful number, since it uses less digits than its factorization.

13321240234340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715716 (or 715714 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 13321240234340 its reverse (4343204212331), we get a palindrome (17664444446671).

The spelling of 13321240234340 in words is "thirteen trillion, three hundred twenty-one billion, two hundred forty million, two hundred thirty-four thousand, three hundred forty".