12132232131 has 4 divisors (see below), whose sum is σ = 16176309512. Its totient is φ = 8088154752.

The previous prime is 12132232117. The next prime is 12132232169. The reversal of 12132232131 is 13123223121.

12132232131 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, and also an emirpimes, since its reverse is a distinct semiprime: 13123223121 = 3 ⋅4374407707.

It is not a de Polignac number, because 12132232131 - 2⁹ = 12132231619 is a prime.

It is a super-2 number, since 2×12132232131² (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 = 12132232098 and 12132232107.

It is not an unprimeable number, because it can be changed into a prime (12132232171) 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, 2022038686 + ... + 2022038691.

It is an arithmetic number, because the mean of its divisors is an integer number (4044077378).

Almost surely, 2^12132232131 is an apocalyptic number.

12132232131 is a deficient number, since it is larger than the sum of its proper divisors (4044077381).

12132232131 is an equidigital number, since it uses as much as digits as its factorization.

12132232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044077380.

The product of its digits is 432, while the sum is 21.

Adding to 12132232131 its reverse (13123223121), we get a palindrome (25255455252).

The spelling of 12132232131 in words is "twelve billion, one hundred thirty-two million, two hundred thirty-two thousand, one hundred thirty-one".