2001120010011 has 12 divisors (see below), whose sum is σ = 2890523932192. Its totient is φ = 1334072044656.

The previous prime is 2001120009901. The next prime is 2001120010027. The reversal of 2001120010011 is 1100100211002.

It is a happy number.

It is not a de Polignac number, because 2001120010011 - 2²⁵ = 2001086455579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001120009975 and 2001120010002.

It is not an unprimeable number, because it can be changed into a prime (2001120018011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1205310 + ... + 2335596.

Almost surely, 2^{2001120010011} is an apocalyptic number.

2001120010011 is a deficient number, since it is larger than the sum of its proper divisors (889403922181).

2001120010011 is a wasteful number, since it uses less digits than its factorization.

2001120010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327010 (or 1327007 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2001120010011 its reverse (1100100211002), we get a palindrome (3101220221013).

The spelling of 2001120010011 in words is "two trillion, one billion, one hundred twenty million, ten thousand, eleven".