2003120311303 has 4 divisors (see below), whose sum is σ = 2037071503080. Its totient is φ = 1969169119528.

The previous prime is 2003120311207. The next prime is 2003120311321. The reversal of 2003120311303 is 3031130213002.

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 2003120311303 - 2¹⁷ = 2003120180231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003120371303) 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, 16975595800 + ... + 16975595917.

It is an arithmetic number, because the mean of its divisors is an integer number (509267875770).

Almost surely, 2^{2003120311303} is an apocalyptic number.

2003120311303 is a deficient number, since it is larger than the sum of its proper divisors (33951191777).

2003120311303 is an equidigital number, since it uses as much as digits as its factorization.

2003120311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33951191776.

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

Adding to 2003120311303 its reverse (3031130213002), we get a palindrome (5034250524305).

The spelling of 2003120311303 in words is "two trillion, three billion, one hundred twenty million, three hundred eleven thousand, three hundred three".