2023203209 has 2 divisors, whose sum is σ = 2023203210. Its totient is φ = 2023203208.

The previous prime is 2023203197. The next prime is 2023203223. The reversal of 2023203209 is 9023023202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2023200400 + 2809 = 44980^2 + 53^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023203209 - 2¹⁶ = 2023137673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2023203229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011601604 + 1011601605.

It is an arithmetic number, because the mean of its divisors is an integer number (1011601605).

Almost surely, 2^2023203209 is an apocalyptic number.

It is an amenable number.

2023203209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023203209 is an equidigital number, since it uses as much as digits as its factorization.

2023203209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2023203209 is about 44980.0312249780. The cubic root of 2023203209 is about 1264.7746965523.

The spelling of 2023203209 in words is "two billion, twenty-three million, two hundred three thousand, two hundred nine".