1011100001009 has 16 divisors (see below), whose sum is σ = 1173597637632. Its totient is φ = 853189856208.

The previous prime is 1011100000987. The next prime is 1011100001011. The reversal of 1011100001009 is 9001000011101.

It is a happy number.

1011100001009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011100001009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011100000984 and 1011100001002.

It is not an unprimeable number, because it can be changed into a prime (1011100001029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2910269 + ... + 3239114.

It is an arithmetic number, because the mean of its divisors is an integer number (73349852352).

Almost surely, 2^{1011100001009} is an apocalyptic number.

It is an amenable number.

1011100001009 is a deficient number, since it is larger than the sum of its proper divisors (162497636623).

1011100001009 is an equidigital number, since it uses as much as digits as its factorization.

1011100001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149756.

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

The spelling of 1011100001009 in words is "one trillion, eleven billion, one hundred million, one thousand, nine".