12000018869017 has 2 divisors, whose sum is σ = 12000018869018. Its totient is φ = 12000018869016.

The previous prime is 12000018868997. The next prime is 12000018869029. The reversal of 12000018869017 is 71096881000021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11947696423936 + 52322445081 = 3456544^2 + 228741^2 .

It is an emirp because it is prime and its reverse (71096881000021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000018869017 - 2⁷ = 12000018868889 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000018864017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000009434508 + 6000009434509.

It is an arithmetic number, because the mean of its divisors is an integer number (6000009434509).

Almost surely, 2^{12000018869017} is an apocalyptic number.

It is an amenable number.

12000018869017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000018869017 is an equidigital number, since it uses as much as digits as its factorization.

12000018869017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 43.

Adding to 12000018869017 its reverse (71096881000021), we get a palindrome (83096899869038).

The spelling of 12000018869017 in words is "twelve trillion, eighteen million, eight hundred sixty-nine thousand, seventeen".