12132321200 has 60 divisors (see below), whose sum is σ = 30088187328. Its totient is φ = 4696377600.

The previous prime is 12132321139. The next prime is 12132321203. The reversal of 12132321200 is 212323121.

It is not an unprimeable number, because it can be changed into a prime (12132321203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476807 + ... + 501606.

Almost surely, 2^12132321200 is an apocalyptic number.

12132321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132321200 is an abundant number, since it is smaller than the sum of its proper divisors (17955866128).

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

12132321200 is a wasteful number, since it uses less digits than its factorization.

12132321200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978462 (or 978451 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12132321200 its reverse (212323121), we get a palindrome (12344644321).

The spelling of 12132321200 in words is "twelve billion, one hundred thirty-two million, three hundred twenty-one thousand, two hundred".