12031232189 has 2 divisors, whose sum is σ = 12031232190. Its totient is φ = 12031232188.

The previous prime is 12031232141. The next prime is 12031232201. The reversal of 12031232189 is 98123213021.

12031232189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12030799225 + 432964 = 109685^2 + 658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031232189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031732189) 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 as a sum of consecutive naturals, namely, 6015616094 + 6015616095.

It is an arithmetic number, because the mean of its divisors is an integer number (6015616095).

Almost surely, 2^12031232189 is an apocalyptic number.

It is an amenable number.

12031232189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031232189 is an equidigital number, since it uses as much as digits as its factorization.

12031232189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 12031232189 in words is "twelve billion, thirty-one million, two hundred thirty-two thousand, one hundred eighty-nine".