11013112109 has 2 divisors, whose sum is σ = 11013112110. Its totient is φ = 11013112108.

The previous prime is 11013112079. The next prime is 11013112133. The reversal of 11013112109 is 90121131011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9239438884 + 1773673225 = 96122^2 + 42115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11013112109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11013112309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506556054 + 5506556055.

It is an arithmetic number, because the mean of its divisors is an integer number (5506556055).

Almost surely, 2^11013112109 is an apocalyptic number.

It is an amenable number.

11013112109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013112109 is an equidigital number, since it uses as much as digits as its factorization.

11013112109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 11013112109 in words is "eleven billion, thirteen million, one hundred twelve thousand, one hundred nine".