1101001000009 has 4 divisors (see below), whose sum is σ = 1101021213204. Its totient is φ = 1100980786816.

The previous prime is 1101000999997. The next prime is 1101001000013. The reversal of 1101001000009 is 9000001001011.

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 289610804025 + 811390195984 = 538155^2 + 900772^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101001000009 - 2²³ = 1100992611401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101001000039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10024672 + ... + 10133905.

It is an arithmetic number, because the mean of its divisors is an integer number (275255303301).

Almost surely, 2^{1101001000009} is an apocalyptic number.

It is an amenable number.

1101001000009 is a deficient number, since it is larger than the sum of its proper divisors (20213195).

1101001000009 is an equidigital number, since it uses as much as digits as its factorization.

1101001000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20213194.

The product of its (nonzero) digits is 9, while the sum is 13.

The spelling of 1101001000009 in words is "one trillion, one hundred one billion, one million, nine", and thus it is an aban number.