12032440520 has 16 divisors (see below), whose sum is σ = 27072991260. Its totient is φ = 4812976192.

The previous prime is 12032440463. The next prime is 12032440549. The reversal of 12032440520 is 2504423021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10934048356 + 1098392164 = 104566^2 + 33142^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150405467 + ... + 150405546.

Almost surely, 2^12032440520 is an apocalyptic number.

12032440520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12032440520 is an abundant number, since it is smaller than the sum of its proper divisors (15040550740).

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

12032440520 is a wasteful number, since it uses less digits than its factorization.

12032440520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300811024 (or 300811020 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 12032440520 its reverse (2504423021), we get a palindrome (14536863541).

The spelling of 12032440520 in words is "twelve billion, thirty-two million, four hundred forty thousand, five hundred twenty".