12031987200 has 120 divisors (see below), whose sum is σ = 39747044568. Its totient is φ = 3208519680.

The previous prime is 12031987193. The next prime is 12031987243. The reversal of 12031987200 is 278913021.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118267 + ... + 195066.

Almost surely, 2^12031987200 is an apocalyptic number.

12031987200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031987200 is an abundant number, since it is smaller than the sum of its proper divisors (27715057368).

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

12031987200 is an equidigital number, since it uses as much as digits as its factorization.

12031987200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313364 (or 313343 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The spelling of 12031987200 in words is "twelve billion, thirty-one million, nine hundred eighty-seven thousand, two hundred".