12132232530 has 128 divisors (see below), whose sum is σ = 32146882560. Its totient is φ = 2905943040.

The previous prime is 12132232517. The next prime is 12132232531. The reversal of 12132232530 is 3523223121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12132232530.

It is not an unprimeable number, because it can be changed into a prime (12132232531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14123241 + ... + 14124099.

It is an arithmetic number, because the mean of its divisors is an integer number (251147520).

Almost surely, 2^12132232530 is an apocalyptic number.

12132232530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12132232530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16073441280).

12132232530 is an abundant number, since it is smaller than the sum of its proper divisors (20014650030).

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

12132232530 is a wasteful number, since it uses less digits than its factorization.

12132232530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12132232530 its reverse (3523223121), we get a palindrome (15655455651).

The spelling of 12132232530 in words is "twelve billion, one hundred thirty-two million, two hundred thirty-two thousand, five hundred thirty".