13321213342340 has 12 divisors (see below), whose sum is σ = 27974548018956. Its totient is φ = 5328485336928.

The previous prime is 13321213342273. The next prime is 13321213342373. The reversal of 13321213342340 is 4324331212331.

It can be written as a sum of positive squares in 2 ways, for example, as 2389448174656 + 10931765167684 = 1545784^2 + 3306322^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13321213342297 and 13321213342306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333030333539 + ... + 333030333578.

It is an arithmetic number, because the mean of its divisors is an integer number (2331212334913).

Almost surely, 2^{13321213342340} is an apocalyptic number.

13321213342340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321213342340 is an abundant number, since it is smaller than the sum of its proper divisors (14653334676616).

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

13321213342340 is a wasteful number, since it uses less digits than its factorization.

13321213342340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666060667126 (or 666060667124 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 13321213342340 its reverse (4324331212331), we get a palindrome (17645544554671).

The spelling of 13321213342340 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thirteen million, three hundred forty-two thousand, three hundred forty".