12125001289 has 2 divisors, whose sum is σ = 12125001290. Its totient is φ = 12125001288.

The previous prime is 12125001247. The next prime is 12125001319. The reversal of 12125001289 is 98210052121.

12125001289 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., 10969001289 + 1156000000 = 104733^2 + 34000^2 .

It is a cyclic number.

It is not a de Polignac number, because 12125001289 - 2⁹ = 12125000777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12125001289.

It is not a weakly prime, because it can be changed into another prime (12125001589) 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, 6062500644 + 6062500645.

It is an arithmetic number, because the mean of its divisors is an integer number (6062500645).

Almost surely, 2^12125001289 is an apocalyptic number.

It is an amenable number.

12125001289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12125001289 is an equidigital number, since it uses as much as digits as its factorization.

12125001289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 12125001289 in words is "twelve billion, one hundred twenty-five million, one thousand, two hundred eighty-nine".