112321123218 has 24 divisors (see below), whose sum is σ = 243671692368. Its totient is φ = 37392796152.

The previous prime is 112321123217. The next prime is 112321123237. The reversal of 112321123218 is 812321123211.

It is a happy number.

112321123218 is a `hidden beast` number, since 1 + 1 + 2 + 321 + 12 + 321 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 112321123191 and 112321123200.

It is not an unprimeable number, because it can be changed into a prime (112321123217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3950296 + ... + 3978627.

It is an arithmetic number, because the mean of its divisors is an integer number (10152987182).

Almost surely, 2^112321123218 is an apocalyptic number.

112321123218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

112321123218 is an abundant number, since it is smaller than the sum of its proper divisors (131350569150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112321123218 is a wasteful number, since it uses less digits than its factorization.

112321123218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929718 (or 7929715 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

Adding to 112321123218 its reverse (812321123211), we get a palindrome (924642246429).

The spelling of 112321123218 in words is "one hundred twelve billion, three hundred twenty-one million, one hundred twenty-three thousand, two hundred eighteen".