2003020021313 has 4 divisors (see below), whose sum is σ = 2012513007408. Its totient is φ = 1993527035220.

The previous prime is 2003020021297. The next prime is 2003020021349. The reversal of 2003020021313 is 3131200203002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2003020021313 - 2⁴ = 2003020021297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2003020021291 and 2003020021300.

It is not an unprimeable number, because it can be changed into a prime (2003020021913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4746492731 + ... + 4746493152.

It is an arithmetic number, because the mean of its divisors is an integer number (503128251852).

Almost surely, 2^{2003020021313} is an apocalyptic number.

It is an amenable number.

2003020021313 is a deficient number, since it is larger than the sum of its proper divisors (9492986095).

2003020021313 is an equidigital number, since it uses as much as digits as its factorization.

2003020021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9492986094.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 2003020021313 its reverse (3131200203002), we get a palindrome (5134220224315).

The spelling of 2003020021313 in words is "two trillion, three billion, twenty million, twenty-one thousand, three hundred thirteen".