12112321318 has 16 divisors (see below), whose sum is σ = 18987145056. Its totient is φ = 5784071040.

The previous prime is 12112321301. The next prime is 12112321327. The reversal of 12112321318 is 81312321121.

It is a junction number, because it is equal to n+sod(n) for n = 12112321292 and 12112321301.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 168771 + ... + 229582.

It is an arithmetic number, because the mean of its divisors is an integer number (1186696566).

Almost surely, 2^12112321318 is an apocalyptic number.

12112321318 is a deficient number, since it is larger than the sum of its proper divisors (6874823738).

12112321318 is a wasteful number, since it uses less digits than its factorization.

12112321318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399039.

The product of its digits is 576, while the sum is 25.

Adding to 12112321318 its reverse (81312321121), we get a palindrome (93424642439).

The spelling of 12112321318 in words is "twelve billion, one hundred twelve million, three hundred twenty-one thousand, three hundred eighteen".