12011133312 has 96 divisors (see below), whose sum is σ = 34905836160. Its totient is φ = 3964032000.

The previous prime is 12011133307. The next prime is 12011133341. The reversal of 12011133312 is 21333111021.

12011133312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 64737 + ... + 167967.

It is an arithmetic number, because the mean of its divisors is an integer number (363602460).

Almost surely, 2^12011133312 is an apocalyptic number.

12011133312 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 12011133312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17452918080).

12011133312 is an abundant number, since it is smaller than the sum of its proper divisors (22894702848).

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

12011133312 is a wasteful number, since it uses less digits than its factorization.

12011133312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103352 (or 103337 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12011133312 its reverse (21333111021), we get a palindrome (33344244333).

The spelling of 12011133312 in words is "twelve billion, eleven million, one hundred thirty-three thousand, three hundred twelve".