2003311312003 has 4 divisors (see below), whose sum is σ = 2037265741080. Its totient is φ = 1969356882928.

The previous prime is 2003311311959. The next prime is 2003311312069. The reversal of 2003311312003 is 3002131133002.

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 2003311312003 - 2¹⁷ = 2003311180931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003311112003) 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, 16977214450 + ... + 16977214567.

It is an arithmetic number, because the mean of its divisors is an integer number (509316435270).

Almost surely, 2^{2003311312003} is an apocalyptic number.

2003311312003 is a deficient number, since it is larger than the sum of its proper divisors (33954429077).

2003311312003 is an equidigital number, since it uses as much as digits as its factorization.

2003311312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33954429076.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2003311312003 its reverse (3002131133002), we get a palindrome (5005442445005).

The spelling of 2003311312003 in words is "two trillion, three billion, three hundred eleven million, three hundred twelve thousand, three".