12131844168 has 32 divisors (see below), whose sum is σ = 30974924160. Its totient is φ = 3957906240.

The previous prime is 12131844163. The next prime is 12131844209. The reversal of 12131844168 is 86144813121.

It is a super-2 number, since 2×12131844168² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12131844163) 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 7 ways as a sum of consecutive naturals, for example, 5376463 + ... + 5378718.

It is an arithmetic number, because the mean of its divisors is an integer number (967966380).

Almost surely, 2^12131844168 is an apocalyptic number.

It is an amenable number.

12131844168 is an abundant number, since it is smaller than the sum of its proper divisors (18843079992).

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

12131844168 is a wasteful number, since it uses less digits than its factorization.

12131844168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10755237 (or 10755233 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The spelling of 12131844168 in words is "twelve billion, one hundred thirty-one million, eight hundred forty-four thousand, one hundred sixty-eight".