13117313 has 4 divisors (see below), whose sum is σ = 14309808. Its totient is φ = 11924820.

The previous prime is 13117259. The next prime is 13117331. The reversal of 13117313 is 31371131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31371131 = 11 ⋅2851921.

It is a cyclic number.

It is not a de Polignac number, because 13117313 - 2⁶ = 13117249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13117343) 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, 596231 + ... + 596252.

It is an arithmetic number, because the mean of its divisors is an integer number (3577452).

Almost surely, 2^13117313 is an apocalyptic number.

It is an amenable number.

13117313 is a deficient number, since it is larger than the sum of its proper divisors (1192495).

13117313 is a wasteful number, since it uses less digits than its factorization.

13117313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192494.

The product of its digits is 189, while the sum is 20.

The square root of 13117313 is about 3621.7831243740. The cubic root of 13117313 is about 235.8386393387.

Adding to 13117313 its reverse (31371131), we get a palindrome (44488444).

The spelling of 13117313 in words is "thirteen million, one hundred seventeen thousand, three hundred thirteen".