13123118 has 8 divisors (see below), whose sum is σ = 20056248. Its totient is φ = 6437704.

The previous prime is 13123111. The next prime is 13123147. The reversal of 13123118 is 81132131.

13123118 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 a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13123118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123111) 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, 61796 + ... + 62007.

It is an arithmetic number, because the mean of its divisors is an integer number (2507031).

Almost surely, 2^13123118 is an apocalyptic number.

13123118 is a deficient number, since it is larger than the sum of its proper divisors (6933130).

13123118 is a wasteful number, since it uses less digits than its factorization.

13123118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123858.

The product of its digits is 144, while the sum is 20.

The square root of 13123118 is about 3622.5844365591. The cubic root of 13123118 is about 235.8734239371.

Adding to 13123118 its reverse (81132131), we get a palindrome (94255249).

The spelling of 13123118 in words is "thirteen million, one hundred twenty-three thousand, one hundred eighteen".