2023320021 has 32 divisors (see below), whose sum is σ = 2770416000. Its totient is φ = 1313245440.

The previous prime is 2023320017. The next prime is 2023320023. The reversal of 2023320021 is 1200233202.

It is not a de Polignac number, because 2023320021 - 2² = 2023320017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023320023) 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 31 ways as a sum of consecutive naturals, for example, 6382555 + ... + 6382871.

It is an arithmetic number, because the mean of its divisors is an integer number (86575500).

Almost surely, 2^2023320021 is an apocalyptic number.

It is an amenable number.

2023320021 is a deficient number, since it is larger than the sum of its proper divisors (747095979).

2023320021 is a wasteful number, since it uses less digits than its factorization.

2023320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2023320021 is about 44981.3296935517. The cubic root of 2023320021 is about 1264.7990371652.

Adding to 2023320021 its reverse (1200233202), we get a palindrome (3223553223).

The spelling of 2023320021 in words is "two billion, twenty-three million, three hundred twenty thousand, twenty-one".