12320130132 has 72 divisors (see below), whose sum is σ = 32349897216. Its totient is φ = 4099854528.

The previous prime is 12320130091. The next prime is 12320130133. The reversal of 12320130132 is 23103102321.

12320130132 is a `hidden beast` number, since 12 + 320 + 1 + 301 + 32 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320130133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589453 + ... + 609995.

It is an arithmetic number, because the mean of its divisors is an integer number (449304128).

Almost surely, 2^12320130132 is an apocalyptic number.

12320130132 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 12320130132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16174948608).

12320130132 is an abundant number, since it is smaller than the sum of its proper divisors (20029767084).

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

12320130132 is a wasteful number, since it uses less digits than its factorization.

12320130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179 (or 21165 counting only the distinct ones).

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

Adding to 12320130132 its reverse (23103102321), we get a palindrome (35423232453).

The spelling of 12320130132 in words is "twelve billion, three hundred twenty million, one hundred thirty thousand, one hundred thirty-two".