2023320643 has 2 divisors, whose sum is σ = 2023320644. Its totient is φ = 2023320642.

The previous prime is 2023320613. The next prime is 2023320661. The reversal of 2023320643 is 3460233202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2023320643 - 2²⁵ = 1989766211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2023320613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011660321 + 1011660322.

It is an arithmetic number, because the mean of its divisors is an integer number (1011660322).

Almost surely, 2^2023320643 is an apocalyptic number.

2023320643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023320643 is an equidigital number, since it uses as much as digits as its factorization.

2023320643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 2023320643 is about 44981.3366075309. The cubic root of 2023320643 is about 1264.7991667715.

Adding to 2023320643 its reverse (3460233202), we get a palindrome (5483553845).

The spelling of 2023320643 in words is "two billion, twenty-three million, three hundred twenty thousand, six hundred forty-three".