2001111006 has 16 divisors (see below), whose sum is σ = 4003743744. Its totient is φ = 666783384.

The previous prime is 2001110999. The next prime is 2001111017. The reversal of 2001111006 is 6001111002.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001110982 and 2001111000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45940 + ... + 78183.

It is an arithmetic number, because the mean of its divisors is an integer number (250233984).

Almost surely, 2^2001111006 is an apocalyptic number.

2001111006 is an abundant number, since it is smaller than the sum of its proper divisors (2002632738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001111006 is a wasteful number, since it uses less digits than its factorization.

2001111006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126815.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2001111006 is about 44733.7792501371. The cubic root of 2001111006 is about 1260.1543033502.

Adding to 2001111006 its reverse (6001111002), we get a palindrome (8002222008).

The spelling of 2001111006 in words is "two billion, one million, one hundred eleven thousand, six".