12100320112 has 40 divisors (see below), whose sum is σ = 24878988000. Its totient is φ = 5681528832.

The previous prime is 12100320109. The next prime is 12100320137. The reversal of 12100320112 is 21102300121.

12100320112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12100320092 and 12100320101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72589 + ... + 171667.

It is an arithmetic number, because the mean of its divisors is an integer number (621974700).

Almost surely, 2^12100320112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12100320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12439494000).

12100320112 is an abundant number, since it is smaller than the sum of its proper divisors (12778667888).

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

12100320112 is a wasteful number, since it uses less digits than its factorization.

12100320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99553 (or 99547 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12100320112 its reverse (21102300121), we get a palindrome (33202620233).

The spelling of 12100320112 in words is "twelve billion, one hundred million, three hundred twenty thousand, one hundred twelve".