318116121 has 32 divisors (see below), whose sum is σ = 463719168. Its totient is φ = 193167360.

The previous prime is 318116101. The next prime is 318116137. The reversal of 318116121 is 121611813.

It is not a de Polignac number, because 318116121 - 2¹⁰ = 318115097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 318116091 and 318116100.

It is not an unprimeable number, because it can be changed into a prime (318116101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495961 + ... + 496601.

It is an arithmetic number, because the mean of its divisors is an integer number (14491224).

Almost surely, 2^318116121 is an apocalyptic number.

It is an amenable number.

318116121 is a deficient number, since it is larger than the sum of its proper divisors (145603047).

318116121 is a wasteful number, since it uses less digits than its factorization.

318116121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its digits is 288, while the sum is 24.

The square root of 318116121 is about 17835.8100741177. The cubic root of 318116121 is about 682.6454911286.

Adding to 318116121 its reverse (121611813), we get a palindrome (439727934).

The spelling of 318116121 in words is "three hundred eighteen million, one hundred sixteen thousand, one hundred twenty-one".