2021020230323 has 4 divisors (see below), whose sum is σ = 2031491837928. Its totient is φ = 2010548622720.

The previous prime is 2021020230263. The next prime is 2021020230343. The reversal of 2021020230323 is 3230320201202.

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-2021020230323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021020230295 and 2021020230304.

It is not an unprimeable number, because it can be changed into a prime (2021020230343) 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, 5235803513 + ... + 5235803898.

It is an arithmetic number, because the mean of its divisors is an integer number (507872959482).

Almost surely, 2^{2021020230323} is an apocalyptic number.

2021020230323 is a deficient number, since it is larger than the sum of its proper divisors (10471607605).

2021020230323 is a wasteful number, since it uses less digits than its factorization.

2021020230323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471607604.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 2021020230323 its reverse (3230320201202), we get a palindrome (5251340431525).

The spelling of 2021020230323 in words is "two trillion, twenty-one billion, twenty million, two hundred thirty thousand, three hundred twenty-three".