12133004240 has 80 divisors (see below), whose sum is σ = 32432424192. Its totient is φ = 4134945792.

The previous prime is 12133004209. The next prime is 12133004327. The reversal of 12133004240 is 4240033121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28652 + ... + 158388.

Almost surely, 2^12133004240 is an apocalyptic number.

12133004240 is a gapful number since it is divisible by the number (10) 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 12133004240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16216212096).

12133004240 is an abundant number, since it is smaller than the sum of its proper divisors (20299419952).

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

12133004240 is a wasteful number, since it uses less digits than its factorization.

12133004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129924 (or 129918 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12133004240 its reverse (4240033121), we get a palindrome (16373037361).

The spelling of 12133004240 in words is "twelve billion, one hundred thirty-three million, four thousand, two hundred forty".