12001311112 has 16 divisors (see below), whose sum is σ = 25717095360. Its totient is φ = 5143419024.

The previous prime is 12001311103. The next prime is 12001311173. The reversal of 12001311112 is 21111310021.

It is a happy number.

12001311112 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 = 12001311092 and 12001311101.

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 3 ways as a sum of consecutive naturals, for example, 107154508 + ... + 107154619.

It is an arithmetic number, because the mean of its divisors is an integer number (1607318460).

Almost surely, 2^12001311112 is an apocalyptic number.

It is an amenable number.

12001311112 is an abundant number, since it is smaller than the sum of its proper divisors (13715784248).

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

12001311112 is a wasteful number, since it uses less digits than its factorization.

12001311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214309140 (or 214309136 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12001311112 its reverse (21111310021), we get a palindrome (33112621133).

The spelling of 12001311112 in words is "twelve billion, one million, three hundred eleven thousand, one hundred twelve".