11110112102081 has 2 divisors, whose sum is σ = 11110112102082. Its totient is φ = 11110112102080.

The previous prime is 11110112102053. The next prime is 11110112102137. The reversal of 11110112102081 is 18020121101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10796422495681 + 313689606400 = 3285791^2 + 560080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11110112102081 is a prime.

It is a super-2 number, since 2×11110112102081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11110112102281) 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, 5555056051040 + 5555056051041.

It is an arithmetic number, because the mean of its divisors is an integer number (5555056051041).

Almost surely, 2^{11110112102081} is an apocalyptic number.

It is an amenable number.

11110112102081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110112102081 is an equidigital number, since it uses as much as digits as its factorization.

11110112102081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 11110112102081 its reverse (18020121101111), we get a palindrome (29130233203192).

The spelling of 11110112102081 in words is "eleven trillion, one hundred ten billion, one hundred twelve million, one hundred two thousand, eighty-one".