10111109 has 2 divisors, whose sum is σ = 10111110. Its totient is φ = 10111108.

The previous prime is 10111103. The next prime is 10111117. The reversal of 10111109 is 90111101.

It is a happy number.

10111109 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 2630884 = 2735^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111109 - 2⁴ = 10111093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10111093 and 10111102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055554 + 5055555.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555).

Almost surely, 2^10111109 is an apocalyptic number.

It is an amenable number.

10111109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111109 is an equidigital number, since it uses as much as digits as its factorization.

10111109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 14.

The square root of 10111109 is about 3179.7970060996. The cubic root of 10111109 is about 216.2384555076.

The spelling of 10111109 in words is "ten million, one hundred eleven thousand, one hundred nine".