2111312412317 has 2 divisors, whose sum is σ = 2111312412318. Its totient is φ = 2111312412316.

The previous prime is 2111312412301. The next prime is 2111312412359. The reversal of 2111312412317 is 7132142131112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1829145346681 + 282167065636 = 1352459^2 + 531194^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111312412317 - 2⁴ = 2111312412301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111312412317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111312412367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055656206158 + 1055656206159.

It is an arithmetic number, because the mean of its divisors is an integer number (1055656206159).

Almost surely, 2^{2111312412317} is an apocalyptic number.

It is an amenable number.

2111312412317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111312412317 is an equidigital number, since it uses as much as digits as its factorization.

2111312412317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

Adding to 2111312412317 its reverse (7132142131112), we get a palindrome (9243454543429).

The spelling of 2111312412317 in words is "two trillion, one hundred eleven billion, three hundred twelve million, four hundred twelve thousand, three hundred seventeen".