2001120010003 has 4 divisors (see below), whose sum is σ = 2001696871360. Its totient is φ = 2000543148648.

The previous prime is 2001120009901. The next prime is 2001120010027. The reversal of 2001120010003 is 3000100211002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001120010003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001120050003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288425475 + ... + 288432412.

It is an arithmetic number, because the mean of its divisors is an integer number (500424217840).

Almost surely, 2^{2001120010003} is an apocalyptic number.

2001120010003 is a deficient number, since it is larger than the sum of its proper divisors (576861357).

2001120010003 is an equidigital number, since it uses as much as digits as its factorization.

2001120010003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576861356.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 2001120010003 its reverse (3000100211002), we get a palindrome (5001220221005).

The spelling of 2001120010003 in words is "two trillion, one billion, one hundred twenty million, ten thousand, three".