12000321132 has 48 divisors (see below), whose sum is σ = 28270015200. Its totient is φ = 3961796608.

The previous prime is 12000321127. The next prime is 12000321187. The reversal of 12000321132 is 23112300021.

It is a super-2 number, since 2×12000321132² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621658 + ... + 640670.

It is an arithmetic number, because the mean of its divisors is an integer number (588958650).

Almost surely, 2^12000321132 is an apocalyptic number.

12000321132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000321132 is an abundant number, since it is smaller than the sum of its proper divisors (16269694068).

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

12000321132 is a wasteful number, since it uses less digits than its factorization.

12000321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19522 (or 19520 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12000321132 its reverse (23112300021), we get a palindrome (35112621153).

The spelling of 12000321132 in words is "twelve billion, three hundred twenty-one thousand, one hundred thirty-two".