12305044289 has 2 divisors, whose sum is σ = 12305044290. Its totient is φ = 12305044288.

The previous prime is 12305044273. The next prime is 12305044327. The reversal of 12305044289 is 98244050321.

It is an a-pointer prime, because the next prime (12305044327) can be obtained adding 12305044289 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12279964225 + 25080064 = 110815^2 + 5008^2 .

It is a cyclic number.

It is not a de Polignac number, because 12305044289 - 2⁴ = 12305044273 is a prime.

It is a super-2 number, since 2×12305044289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12305044589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152522144 + 6152522145.

It is an arithmetic number, because the mean of its divisors is an integer number (6152522145).

Almost surely, 2^12305044289 is an apocalyptic number.

It is an amenable number.

12305044289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305044289 is an equidigital number, since it uses as much as digits as its factorization.

12305044289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 12305044289 in words is "twelve billion, three hundred five million, forty-four thousand, two hundred eighty-nine".