12142342189 has 2 divisors, whose sum is σ = 12142342190. Its totient is φ = 12142342188.

The previous prime is 12142342159. The next prime is 12142342231. The reversal of 12142342189 is 98124324121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10715769289 + 1426572900 = 103517^2 + 37770^2 .

It is a cyclic number.

It is not a de Polignac number, because 12142342189 - 2²⁷ = 12008124461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12142342139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071171094 + 6071171095.

It is an arithmetic number, because the mean of its divisors is an integer number (6071171095).

Almost surely, 2^12142342189 is an apocalyptic number.

It is an amenable number.

12142342189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142342189 is an equidigital number, since it uses as much as digits as its factorization.

12142342189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The spelling of 12142342189 in words is "twelve billion, one hundred forty-two million, three hundred forty-two thousand, one hundred eighty-nine".