1011011001109 has 4 divisors (see below), whose sum is σ = 1011113123020. Its totient is φ = 1010908879200.

The previous prime is 1011011001101. The next prime is 1011011001211. The reversal of 1011011001109 is 9011001101101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 786685624209 + 224325376900 = 886953^2 + 473630^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011011001109 - 2³ = 1011011001101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011011001092 and 1011011001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011011001101) 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, 51046104 + ... + 51065905.

It is an arithmetic number, because the mean of its divisors is an integer number (252778280755).

Almost surely, 2^{1011011001109} is an apocalyptic number.

It is an amenable number.

1011011001109 is a deficient number, since it is larger than the sum of its proper divisors (102121911).

1011011001109 is an equidigital number, since it uses as much as digits as its factorization.

1011011001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102121910.

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

The spelling of 1011011001109 in words is "one trillion, eleven billion, eleven million, one thousand, one hundred nine".