13831913317 has 4 divisors (see below), whose sum is σ = 13924745100. Its totient is φ = 13739081536.

The previous prime is 13831913311. The next prime is 13831913387. The reversal of 13831913317 is 71331913831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5456185956 + 8375727361 = 73866^2 + 91519^2 .

It is a cyclic number.

It is not a de Polignac number, because 13831913317 - 2³ = 13831913309 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 13831913317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13831913311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46415668 + ... + 46415965.

It is an arithmetic number, because the mean of its divisors is an integer number (3481186275).

Almost surely, 2^13831913317 is an apocalyptic number.

It is an amenable number.

13831913317 is a deficient number, since it is larger than the sum of its proper divisors (92831783).

13831913317 is an equidigital number, since it uses as much as digits as its factorization.

13831913317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92831782.

The product of its digits is 40824, while the sum is 40.

The spelling of 13831913317 in words is "thirteen billion, eight hundred thirty-one million, nine hundred thirteen thousand, three hundred seventeen".