1101001109 has 4 divisors (see below), whose sum is σ = 1185693516. Its totient is φ = 1016308704.

The previous prime is 1101001087. The next prime is 1101001123. The reversal of 1101001109 is 9011001011.

It is a happy number.

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 725494225 + 375506884 = 26935^2 + 19378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101001109 - 2¹² = 1100997013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101001093 and 1101001102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42346184 + ... + 42346209.

It is an arithmetic number, because the mean of its divisors is an integer number (296423379).

Almost surely, 2^1101001109 is an apocalyptic number.

It is an amenable number.

1101001109 is a deficient number, since it is larger than the sum of its proper divisors (84692407).

1101001109 is an equidigital number, since it uses as much as digits as its factorization.

1101001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84692406.

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

The square root of 1101001109 is about 33181.3367572797. The cubic root of 1101001109 is about 1032.5931795673.

The spelling of 1101001109 in words is "one billion, one hundred one million, one thousand, one hundred nine".