2021131330303 has 4 divisors (see below), whose sum is σ = 2021568714568. Its totient is φ = 2020693946040.

The previous prime is 2021131330243. The next prime is 2021131330327. The reversal of 2021131330303 is 3030331311202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021131330303 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 (2021131330703) 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, 218685201 + ... + 218694442.

It is an arithmetic number, because the mean of its divisors is an integer number (505392178642).

Almost surely, 2^{2021131330303} is an apocalyptic number.

2021131330303 is a deficient number, since it is larger than the sum of its proper divisors (437384265).

2021131330303 is an equidigital number, since it uses as much as digits as its factorization.

2021131330303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437384264.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 2021131330303 its reverse (3030331311202), we get a palindrome (5051462641505).

The spelling of 2021131330303 in words is "two trillion, twenty-one billion, one hundred thirty-one million, three hundred thirty thousand, three hundred three".