12011209999589 has 2 divisors, whose sum is σ = 12011209999590. Its totient is φ = 12011209999588.

The previous prime is 12011209999519. The next prime is 12011209999681. The reversal of 12011209999589 is 98599990211021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11825056582564 + 186153417025 = 3438758^2 + 431455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011209999589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011209999519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005604999794 + 6005604999795.

It is an arithmetic number, because the mean of its divisors is an integer number (6005604999795).

Almost surely, 2^{12011209999589} is an apocalyptic number.

It is an amenable number.

12011209999589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011209999589 is an equidigital number, since it uses as much as digits as its factorization.

12011209999589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 65.

The spelling of 12011209999589 in words is "twelve trillion, eleven billion, two hundred nine million, nine hundred ninety-nine thousand, five hundred eighty-nine".