12142032209 has 2 divisors, whose sum is σ = 12142032210. Its totient is φ = 12142032208.

The previous prime is 12142032197. The next prime is 12142032233. The reversal of 12142032209 is 90223024121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8335142209 + 3806890000 = 91297^2 + 61700^2 .

It is a cyclic number.

It is not a de Polignac number, because 12142032209 - 2⁴ = 12142032193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12142032299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071016104 + 6071016105.

It is an arithmetic number, because the mean of its divisors is an integer number (6071016105).

Almost surely, 2^12142032209 is an apocalyptic number.

It is an amenable number.

12142032209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142032209 is an equidigital number, since it uses as much as digits as its factorization.

12142032209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 12142032209 in words is "twelve billion, one hundred forty-two million, thirty-two thousand, two hundred nine".