12132445331 has 4 divisors (see below), whose sum is σ = 12132724200. Its totient is φ = 12132166464.

The previous prime is 12132445319. The next prime is 12132445357. The reversal of 12132445331 is 13354423121.

12132445331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12132445331 - 2¹⁰ = 12132444307 is a prime.

It is a super-2 number, since 2×12132445331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12132445294 and 12132445303.

It is not an unprimeable number, because it can be changed into a prime (12132445361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58526 + ... + 166403.

It is an arithmetic number, because the mean of its divisors is an integer number (3033181050).

Almost surely, 2^12132445331 is an apocalyptic number.

12132445331 is a deficient number, since it is larger than the sum of its proper divisors (278869).

12132445331 is an equidigital number, since it uses as much as digits as its factorization.

12132445331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278868.

The product of its digits is 8640, while the sum is 29.

Adding to 12132445331 its reverse (13354423121), we get a palindrome (25486868452).

The spelling of 12132445331 in words is "twelve billion, one hundred thirty-two million, four hundred forty-five thousand, three hundred thirty-one".