13118113 has 4 divisors (see below), whose sum is σ = 13808560. Its totient is φ = 12427668.

The previous prime is 13118107. The next prime is 13118129. The reversal of 13118113 is 31181131.

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: 31181131 = 1723 ⋅18097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13118113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 690427 = 13118113 / (1 + 3 + 1 + 1 + 8 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13118213) 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, 345195 + ... + 345232.

It is an arithmetic number, because the mean of its divisors is an integer number (3452140).

Almost surely, 2^13118113 is an apocalyptic number.

It is an amenable number.

13118113 is a deficient number, since it is larger than the sum of its proper divisors (690447).

13118113 is an equidigital number, since it uses as much as digits as its factorization.

13118113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690446.

The product of its digits is 72, while the sum is 19.

The square root of 13118113 is about 3621.8935655262. The cubic root of 13118113 is about 235.8434336914.

Adding to 13118113 its reverse (31181131), we get a palindrome (44299244).

It can be divided in two parts, 13118 and 113, that added together give a palindrome (13231).

The spelling of 13118113 in words is "thirteen million, one hundred eighteen thousand, one hundred thirteen".