11111081130217 has 2 divisors, whose sum is σ = 11111081130218. Its totient is φ = 11111081130216.

The previous prime is 11111081130209. The next prime is 11111081130293. The reversal of 11111081130217 is 71203118011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10376522430121 + 734558700096 = 3221261^2 + 857064^2 .

It is a cyclic number.

It is not a de Polignac number, because 11111081130217 - 2³ = 11111081130209 is a prime.

It is a super-2 number, since 2×11111081130217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11111031130217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555540565108 + 5555540565109.

It is an arithmetic number, because the mean of its divisors is an integer number (5555540565109).

Almost surely, 2^{11111081130217} is an apocalyptic number.

It is an amenable number.

11111081130217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111081130217 is an equidigital number, since it uses as much as digits as its factorization.

11111081130217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 28.

Adding to 11111081130217 its reverse (71203118011111), we get a palindrome (82314199141328).

The spelling of 11111081130217 in words is "eleven trillion, one hundred eleven billion, eighty-one million, one hundred thirty thousand, two hundred seventeen".