111010101000109 has 2 divisors, whose sum is σ = 111010101000110. Its totient is φ = 111010101000108.

The previous prime is 111010101000083. The next prime is 111010101000137. The reversal of 111010101000109 is 901000101010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82980986172100 + 28029114828009 = 9109390^2 + 5294253^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010101000109 - 2¹¹ = 111010100998061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010101000092 and 111010101000101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010101000199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050500054 + 55505050500055.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050500055).

Almost surely, 2^{111010101000109} is an apocalyptic number.

It is an amenable number.

111010101000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010101000109 is an equidigital number, since it uses as much as digits as its factorization.

111010101000109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 111010101000109 in words is "one hundred eleven trillion, ten billion, one hundred one million, one hundred nine", and thus it is an aban number.