2001204443003 has 4 divisors (see below), whose sum is σ = 2001267789840. Its totient is φ = 2001141096168.

The previous prime is 2001204442999. The next prime is 2001204443009. The reversal of 2001204443003 is 3003444021002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001204443003 - 2² = 2001204442999 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 2001204443003.

It is not an unprimeable number, because it can be changed into a prime (2001204443009) 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, 31626008 + ... + 31689221.

It is an arithmetic number, because the mean of its divisors is an integer number (500316947460).

Almost surely, 2^{2001204443003} is an apocalyptic number.

2001204443003 is a deficient number, since it is larger than the sum of its proper divisors (63346837).

2001204443003 is an equidigital number, since it uses as much as digits as its factorization.

2001204443003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63346836.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 2001204443003 its reverse (3003444021002), we get a palindrome (5004648464005).

The spelling of 2001204443003 in words is "two trillion, one billion, two hundred four million, four hundred forty-three thousand, three".