12031302132 has 144 divisors (see below), whose sum is σ = 33072399360. Its totient is φ = 3675357504.

The previous prime is 12031302119. The next prime is 12031302193. The reversal of 12031302132 is 23120313021.

It is a super-3 number, since 3×12031302132³ (a number of 31 digits) contains 333 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3145173 + ... + 3148995.

It is an arithmetic number, because the mean of its divisors is an integer number (229669440).

Almost surely, 2^12031302132 is an apocalyptic number.

12031302132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031302132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16536199680).

12031302132 is an abundant number, since it is smaller than the sum of its proper divisors (21041097228).

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

12031302132 is a wasteful number, since it uses less digits than its factorization.

12031302132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12031302132 its reverse (23120313021), we get a palindrome (35151615153).

The spelling of 12031302132 in words is "twelve billion, thirty-one million, three hundred two thousand, one hundred thirty-two".