12120132312 has 24 divisors (see below), whose sum is σ = 32825358540. Its totient is φ = 4040044080.

The previous prime is 12120132293. The next prime is 12120132329. The reversal of 12120132312 is 21323102121.

12120132312 is a `hidden beast` number, since 121 + 201 + 32 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84167514 + ... + 84167657.

Almost surely, 2^12120132312 is an apocalyptic number.

12120132312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120132312 is an abundant number, since it is smaller than the sum of its proper divisors (20705226228).

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

12120132312 is a wasteful number, since it uses less digits than its factorization.

12120132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168335183 (or 168335176 counting only the distinct ones).

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

Adding to 12120132312 its reverse (21323102121), we get a palindrome (33443234433).

The spelling of 12120132312 in words is "twelve billion, one hundred twenty million, one hundred thirty-two thousand, three hundred twelve".