2001000011 has 16 divisors (see below), whose sum is σ = 2137777920. Its totient is φ = 1866408960.

The previous prime is 2000999999. The next prime is 2001000013. The reversal of 2001000011 is 1100001002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2001000011 - 2⁶ = 2000999947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000999959 and 2001000004.

It is not an unprimeable number, because it can be changed into a prime (2001000013) 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 15 ways as a sum of consecutive naturals, for example, 1389830 + ... + 1391268.

It is an arithmetic number, because the mean of its divisors is an integer number (133611120).

Almost surely, 2^2001000011 is an apocalyptic number.

2001000011 is a deficient number, since it is larger than the sum of its proper divisors (136777909).

2001000011 is a wasteful number, since it uses less digits than its factorization.

2001000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 2001000011 is about 44732.5386156431. The cubic root of 2001000011 is about 1260.1310040575.

Adding to 2001000011 its reverse (1100001002), we get a palindrome (3101001013).

Subtracting from 2001000011 its reverse (1100001002), we obtain a palindrome (900999009).

The spelling of 2001000011 in words is "two billion, one million, eleven", and thus it is an aban number and an uban number.