12002089289 has 2 divisors, whose sum is σ = 12002089290. Its totient is φ = 12002089288.

The previous prime is 12002089279. The next prime is 12002089291. The reversal of 12002089289 is 98298020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11404531264 + 597558025 = 106792^2 + 24445^2 .

It is an emirp because it is prime and its reverse (98298020021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12002089289 - 2⁴ = 12002089273 is a prime.

It is a super-2 number, since 2×12002089289² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12002089291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12002089279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001044644 + 6001044645.

It is an arithmetic number, because the mean of its divisors is an integer number (6001044645).

Almost surely, 2^12002089289 is an apocalyptic number.

It is an amenable number.

12002089289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002089289 is an equidigital number, since it uses as much as digits as its factorization.

12002089289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 12002089289 in words is "twelve billion, two million, eighty-nine thousand, two hundred eighty-nine".