12033144312 has 32 divisors (see below), whose sum is σ = 34380412800. Its totient is φ = 3438041184.

The previous prime is 12033144311. The next prime is 12033144349. The reversal of 12033144312 is 21344133021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033144311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35812762 + ... + 35813097.

It is an arithmetic number, because the mean of its divisors is an integer number (1074387900).

Almost surely, 2^12033144312 is an apocalyptic number.

12033144312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12033144312 is an abundant number, since it is smaller than the sum of its proper divisors (22347268488).

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

12033144312 is a wasteful number, since it uses less digits than its factorization.

12033144312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71625875 (or 71625871 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12033144312 its reverse (21344133021), we get a palindrome (33377277333).

The spelling of 12033144312 in words is "twelve billion, thirty-three million, one hundred forty-four thousand, three hundred twelve".