2003221311313 has 4 divisors (see below), whose sum is σ = 2003240059120. Its totient is φ = 2003202563508.

The previous prime is 2003221311271. The next prime is 2003221311341. The reversal of 2003221311313 is 3131131223002.

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 a de Polignac number, because none of the positive numbers 2^k-2003221311313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2003221311373) 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, 9212703 + ... + 9427636.

It is an arithmetic number, because the mean of its divisors is an integer number (500810014780).

Almost surely, 2^{2003221311313} is an apocalyptic number.

It is an amenable number.

2003221311313 is a deficient number, since it is larger than the sum of its proper divisors (18747807).

2003221311313 is a wasteful number, since it uses less digits than its factorization.

2003221311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18747806.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2003221311313 its reverse (3131131223002), we get a palindrome (5134352534315).

The spelling of 2003221311313 in words is "two trillion, three billion, two hundred twenty-one million, three hundred eleven thousand, three hundred thirteen".