111110100110081 has 2 divisors, whose sum is σ = 111110100110082. Its totient is φ = 111110100110080.

The previous prime is 111110100110057. The next prime is 111110100110131. The reversal of 111110100110081 is 180011001011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98277878790400 + 12832221319681 = 9913520^2 + 3582209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110100110081 is a prime.

It is a super-2 number, since 2×111110100110081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111110100110881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555050055040 + 55555050055041.

It is an arithmetic number, because the mean of its divisors is an integer number (55555050055041).

Almost surely, 2^{111110100110081} is an apocalyptic number.

It is an amenable number.

111110100110081 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110100110081 is an equidigital number, since it uses as much as digits as its factorization.

111110100110081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111110100110081 its reverse (180011001011111), we get a palindrome (291121101121192).

The spelling of 111110100110081 in words is "one hundred eleven trillion, one hundred ten billion, one hundred million, one hundred ten thousand, eighty-one".