1011002112009 has 8 divisors (see below), whose sum is σ = 1497780906720. Its totient is φ = 674001407988.

The previous prime is 1011002111953. The next prime is 1011002112011. The reversal of 1011002112009 is 9002112001101.

It is a happy number.

It is not a de Polignac number, because 1011002112009 - 2⁸ = 1011002111753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011002111982 and 1011002112000.

It is not an unprimeable number, because it can be changed into a prime (1011002112049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18722261307 + ... + 18722261360.

It is an arithmetic number, because the mean of its divisors is an integer number (187222613340).

Almost surely, 2^{1011002112009} is an apocalyptic number.

It is an amenable number.

1011002112009 is a deficient number, since it is larger than the sum of its proper divisors (486778794711).

1011002112009 is an equidigital number, since it uses as much as digits as its factorization.

1011002112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37444522676 (or 37444522670 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 1011002112009 in words is "one trillion, eleven billion, two million, one hundred twelve thousand, nine".