2023220309 has 6 divisors (see below), whose sum is σ = 2223870390. Its totient is φ = 1839291080.

The previous prime is 2023220291. The next prime is 2023220321. The reversal of 2023220309 is 9030223202.

It can be written as a sum of positive squares in only one way, i.e., 1962224209 + 60996100 = 44297^2 + 7810^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2023220309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023228309) 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 5 ways as a sum of consecutive naturals, for example, 8360294 + ... + 8360535.

It is an arithmetic number, because the mean of its divisors is an integer number (370645065).

Almost surely, 2^2023220309 is an apocalyptic number.

It is an amenable number.

2023220309 is a deficient number, since it is larger than the sum of its proper divisors (200650081).

2023220309 is a wasteful number, since it uses less digits than its factorization.

2023220309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16720851 (or 16720840 counting only the distinct ones).

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

The square root of 2023220309 is about 44980.2213089264. The cubic root of 2023220309 is about 1264.7782598105.

The spelling of 2023220309 in words is "two billion, twenty-three million, two hundred twenty thousand, three hundred nine".