12031130132 has 72 divisors (see below), whose sum is σ = 25870521600. Its totient is φ = 4873720320.

The previous prime is 12031130119. The next prime is 12031130141. The reversal of 12031130132 is 23103113021.

It is a self number, because there is not a number n which added to its sum of digits gives 12031130132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238244 + ... + 284292.

It is an arithmetic number, because the mean of its divisors is an integer number (359312800).

Almost surely, 2^12031130132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031130132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12935260800).

12031130132 is an abundant number, since it is smaller than the sum of its proper divisors (13839391468).

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

12031130132 is a wasteful number, since it uses less digits than its factorization.

12031130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46141 (or 46132 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12031130132 its reverse (23103113021), we get a palindrome (35134243153).

The spelling of 12031130132 in words is "twelve billion, thirty-one million, one hundred thirty thousand, one hundred thirty-two".