12102132312 has 48 divisors (see below), whose sum is σ = 34704647640. Its totient is φ = 3796747008.

The previous prime is 12102132299. The next prime is 12102132331. The reversal of 12102132312 is 21323120121.

12102132312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4942458 + ... + 4944905.

Almost surely, 2^12102132312 is an apocalyptic number.

12102132312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102132312 is an abundant number, since it is smaller than the sum of its proper divisors (22602515328).

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

12102132312 is a wasteful number, since it uses less digits than its factorization.

12102132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9887392 (or 9887385 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12102132312 its reverse (21323120121), we get a palindrome (33425252433).

The spelling of 12102132312 in words is "twelve billion, one hundred two million, one hundred thirty-two thousand, three hundred twelve".