111010111100109 has 24 divisors (see below), whose sum is σ = 178636960396440. Its totient is φ = 65958262296192.

The previous prime is 111010111100093. The next prime is 111010111100113. The reversal of 111010111100109 is 901001111010111.

It can be written as a sum of positive squares in 4 ways, for example, as 302951168100 + 110707159932009 = 550410^2 + 10521747^2 .

It is not a de Polignac number, because 111010111100109 - 2⁴ = 111010111100093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010111100091 and 111010111100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010111100159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16358692614 + ... + 16358699399.

It is an arithmetic number, because the mean of its divisors is an integer number (7443206683185).

Almost surely, 2^{111010111100109} is an apocalyptic number.

It is an amenable number.

111010111100109 is a deficient number, since it is larger than the sum of its proper divisors (67626849296331).

111010111100109 is a wasteful number, since it uses less digits than its factorization.

111010111100109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32717392061 (or 32717392058 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 18.

The spelling of 111010111100109 in words is "one hundred eleven trillion, ten billion, one hundred eleven million, one hundred thousand, one hundred nine".