111010111116109 has 2 divisors, whose sum is σ = 111010111116110. Its totient is φ = 111010111116108.

The previous prime is 111010111116103. The next prime is 111010111116143. The reversal of 111010111116109 is 901611111010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81496153460484 + 29513957655625 = 9027522^2 + 5432675^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010111116109 - 2³⁵ = 110975751377741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010111116103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505055558054 + 55505055558055.

It is an arithmetic number, because the mean of its divisors is an integer number (55505055558055).

Almost surely, 2^{111010111116109} is an apocalyptic number.

It is an amenable number.

111010111116109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010111116109 is an equidigital number, since it uses as much as digits as its factorization.

111010111116109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 25.

The spelling of 111010111116109 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, one hundred sixteen thousand, one hundred nine".