2002001121003 has 16 divisors (see below), whose sum is σ = 2875343161376. Its totient is φ = 1231711453440.

The previous prime is 2002001120993. The next prime is 2002001121011. The reversal of 2002001121003 is 3001211002002.

It is not a de Polignac number, because 2002001121003 - 2⁵ = 2002001120971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002001121003.

It is not an unprimeable number, because it can be changed into a prime (2002001120003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5857450 + ... + 6189807.

It is an arithmetic number, because the mean of its divisors is an integer number (179708947586).

Almost surely, 2^{2002001121003} is an apocalyptic number.

2002001121003 is a deficient number, since it is larger than the sum of its proper divisors (873342040373).

2002001121003 is a wasteful number, since it uses less digits than its factorization.

2002001121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12051534.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2002001121003 its reverse (3001211002002), we get a palindrome (5003212123005).

The spelling of 2002001121003 in words is "two trillion, two billion, one million, one hundred twenty-one thousand, three".