2021321331233 has 8 divisors (see below), whose sum is σ = 2045816027136. Its totient is φ = 1996830002800.

The previous prime is 2021321331229. The next prime is 2021321331247. The reversal of 2021321331233 is 3321331231202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021321331233 - 2² = 2021321331229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021321336233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376523 + ... + 2045583.

It is an arithmetic number, because the mean of its divisors is an integer number (255727003392).

Almost surely, 2^{2021321331233} is an apocalyptic number.

It is an amenable number.

2021321331233 is a deficient number, since it is larger than the sum of its proper divisors (24494695903).

2021321331233 is a wasteful number, since it uses less digits than its factorization.

2021321331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683735.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 2021321331233 its reverse (3321331231202), we get a palindrome (5342652562435).

The spelling of 2021321331233 in words is "two trillion, twenty-one billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-three".