111110110081 has 2 divisors, whose sum is σ = 111110110082. Its totient is φ = 111110110080.

The previous prime is 111110109961. The next prime is 111110110117. The reversal of 111110110081 is 180011011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63938179600 + 47171930481 = 252860^2 + 217191^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110110081 - 2¹⁵ = 111110077313 is a prime.

It is a super-2 number, since 2×111110110081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111110110981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555055040 + 55555055041.

It is an arithmetic number, because the mean of its divisors is an integer number (55555055041).

Almost surely, 2^111110110081 is an apocalyptic number.

It is an amenable number.

111110110081 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110110081 is an equidigital number, since it uses as much as digits as its factorization.

111110110081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 111110110081 its reverse (180011011111), we get a palindrome (291121121192).

The spelling of 111110110081 in words is "one hundred eleven billion, one hundred ten million, one hundred ten thousand, eighty-one".