2021330331433 has 12 divisors (see below), whose sum is σ = 2351386668672. Its totient is φ = 1732537007880.

The previous prime is 2021330331353. The next prime is 2021330331443. The reversal of 2021330331433 is 3341330331202.

It is a de Polignac number, because none of the positive numbers 2^k-2021330331433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021330331443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2540916 + ... + 3240202.

It is an arithmetic number, because the mean of its divisors is an integer number (195948889056).

Almost surely, 2^{2021330331433} is an apocalyptic number.

It is an amenable number.

2021330331433 is a deficient number, since it is larger than the sum of its proper divisors (330056337239).

2021330331433 is an equidigital number, since it uses as much as digits as its factorization.

2021330331433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758292 (or 758285 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 2021330331433 its reverse (3341330331202), we get a palindrome (5362660662635).

The spelling of 2021330331433 in words is "two trillion, twenty-one billion, three hundred thirty million, three hundred thirty-one thousand, four hundred thirty-three".