111001101010109 has 4 divisors (see below), whose sum is σ = 111001146260160. Its totient is φ = 111001055760060.

The previous prime is 111001101010061. The next prime is 111001101010123. The reversal of 111001101010109 is 901010101100111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111001101010109 - 2¹² = 111001101006013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001101010309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18720869 + ... + 23926410.

It is an arithmetic number, because the mean of its divisors is an integer number (27750286565040).

Almost surely, 2^{111001101010109} is an apocalyptic number.

It is an amenable number.

111001101010109 is a deficient number, since it is larger than the sum of its proper divisors (45250051).

111001101010109 is an equidigital number, since it uses as much as digits as its factorization.

111001101010109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45250050.

The product of its (nonzero) digits is 9, while the sum is 17.

The spelling of 111001101010109 in words is "one hundred eleven trillion, one billion, one hundred one million, ten thousand, one hundred nine".