12193395209 has 2 divisors, whose sum is σ = 12193395210. Its totient is φ = 12193395208.

The previous prime is 12193395161. The next prime is 12193395343. The reversal of 12193395209 is 90259339121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6751087225 + 5442307984 = 82165^2 + 73772^2 .

It is a cyclic number.

It is not a de Polignac number, because 12193395209 - 2²⁰ = 12192346633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12193395209.

It is not a weakly prime, because it can be changed into another prime (12193391209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6096697604 + 6096697605.

It is an arithmetic number, because the mean of its divisors is an integer number (6096697605).

Almost surely, 2^12193395209 is an apocalyptic number.

It is an amenable number.

12193395209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12193395209 is an equidigital number, since it uses as much as digits as its factorization.

12193395209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 44.

The spelling of 12193395209 in words is "twelve billion, one hundred ninety-three million, three hundred ninety-five thousand, two hundred nine".