2001120211003 has 12 divisors (see below), whose sum is σ = 2072669540760. Its totient is φ = 1931961562496.

The previous prime is 2001120210983. The next prime is 2001120211031. The reversal of 2001120211003 is 3001120211002.

It is a de Polignac number, because none of the positive numbers 2^k-2001120211003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001120211033) 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, 11228928 + ... + 11405746.

It is an arithmetic number, because the mean of its divisors is an integer number (172722461730).

Almost surely, 2^{2001120211003} is an apocalyptic number.

2001120211003 is a deficient number, since it is larger than the sum of its proper divisors (71549329757).

2001120211003 is a wasteful number, since it uses less digits than its factorization.

2001120211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190334 (or 190305 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 2001120211003 its reverse (3001120211002), we get a palindrome (5002240422005).

Subtracting 2001120211003 from its reverse (3001120211002), we obtain a palindrome (999999999999).

The spelling of 2001120211003 in words is "two trillion, one billion, one hundred twenty million, two hundred eleven thousand, three".