12011032312217 has 2 divisors, whose sum is σ = 12011032312218. Its totient is φ = 12011032312216.

The previous prime is 12011032312207. The next prime is 12011032312219. The reversal of 12011032312217 is 71221323011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11941890135616 + 69142176601 = 3455704^2 + 262949^2 .

It is an emirp because it is prime and its reverse (71221323011021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011032312217 - 2⁸ = 12011032311961 is a prime.

Together with 12011032312219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12011032312219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005516156108 + 6005516156109.

It is an arithmetic number, because the mean of its divisors is an integer number (6005516156109).

Almost surely, 2^{12011032312217} is an apocalyptic number.

It is an amenable number.

12011032312217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011032312217 is an equidigital number, since it uses as much as digits as its factorization.

12011032312217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 12011032312217 its reverse (71221323011021), we get a palindrome (83232355323238).

The spelling of 12011032312217 in words is "twelve trillion, eleven billion, thirty-two million, three hundred twelve thousand, two hundred seventeen".