2021330043331 has 8 divisors (see below), whose sum is σ = 2021992118640. Its totient is φ = 2020668072192.

The previous prime is 2021330043319. The next prime is 2021330043371. The reversal of 2021330043331 is 1333400331202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021330043331 is a prime.

It is a super-2 number, since 2×2021330043331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021330043296 and 2021330043305.

It is not an unprimeable number, because it can be changed into a prime (2021330043371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58279611 + ... + 58314283.

It is an arithmetic number, because the mean of its divisors is an integer number (252749014830).

Almost surely, 2^{2021330043331} is an apocalyptic number.

2021330043331 is a deficient number, since it is larger than the sum of its proper divisors (662075309).

2021330043331 is a wasteful number, since it uses less digits than its factorization.

2021330043331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52085.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 2021330043331 its reverse (1333400331202), we get a palindrome (3354730374533).

The spelling of 2021330043331 in words is "two trillion, twenty-one billion, three hundred thirty million, forty-three thousand, three hundred thirty-one".