13317065818871 has 4 divisors (see below), whose sum is σ = 13356582334992. Its totient is φ = 13277549302752.

The previous prime is 13317065818813. The next prime is 13317065818891. The reversal of 13317065818871 is 17881856071331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13317065818871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13317065818871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13317065818891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19758257555 + ... + 19758258228.

It is an arithmetic number, because the mean of its divisors is an integer number (3339145583748).

Almost surely, 2^{13317065818871} is an apocalyptic number.

13317065818871 is a deficient number, since it is larger than the sum of its proper divisors (39516516121).

13317065818871 is an equidigital number, since it uses as much as digits as its factorization.

13317065818871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39516516120.

The product of its (nonzero) digits is 6773760, while the sum is 59.

The spelling of 13317065818871 in words is "thirteen trillion, three hundred seventeen billion, sixty-five million, eight hundred eighteen thousand, eight hundred seventy-one".