13165321317 has 8 divisors (see below), whose sum is σ = 17884965024. Its totient is φ = 8611279248.

The previous prime is 13165321297. The next prime is 13165321319. The reversal of 13165321317 is 71312356131.

13165321317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13165321317 - 2²⁰ = 13164272741 is a prime.

It is a super-2 number, since 2×13165321317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13165321319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41400223 + ... + 41400540.

It is an arithmetic number, because the mean of its divisors is an integer number (2235620628).

Almost surely, 2^13165321317 is an apocalyptic number.

It is an amenable number.

13165321317 is a deficient number, since it is larger than the sum of its proper divisors (4719643707).

13165321317 is an equidigital number, since it uses as much as digits as its factorization.

13165321317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82800819.

The product of its digits is 11340, while the sum is 33.

Adding to 13165321317 its reverse (71312356131), we get a palindrome (84477677448).

The spelling of 13165321317 in words is "thirteen billion, one hundred sixty-five million, three hundred twenty-one thousand, three hundred seventeen".