12312341112 has 64 divisors (see below), whose sum is σ = 31643344800. Its totient is φ = 3989329920.

The previous prime is 12312341087. The next prime is 12312341113. The reversal of 12312341112 is 21114321321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312341113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996412 + ... + 1008692.

Almost surely, 2^12312341112 is an apocalyptic number.

12312341112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12312341112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15821672400).

12312341112 is an abundant number, since it is smaller than the sum of its proper divisors (19331003688).

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

12312341112 is a wasteful number, since it uses less digits than its factorization.

12312341112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13456 (or 13452 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 12312341112 its reverse (21114321321), we get a palindrome (33426662433).

The spelling of 12312341112 in words is "twelve billion, three hundred twelve million, three hundred forty-one thousand, one hundred twelve".