12133033440 has 96 divisors (see below), whose sum is σ = 41693533056. Its totient is φ = 2941340160.

The previous prime is 12133033421. The next prime is 12133033447. The reversal of 12133033440 is 4433033121.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12133033440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133033447) 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, 1143682 + ... + 1154241.

It is an arithmetic number, because the mean of its divisors is an integer number (434307636).

Almost surely, 2^12133033440 is an apocalyptic number.

12133033440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133033440 is an abundant number, since it is smaller than the sum of its proper divisors (29560499616).

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

12133033440 is a wasteful number, since it uses less digits than its factorization.

12133033440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297952 (or 2297944 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12133033440 its reverse (4433033121), we get a palindrome (16566066561).

The spelling of 12133033440 in words is "twelve billion, one hundred thirty-three million, thirty-three thousand, four hundred forty".