2303240209 has 2 divisors, whose sum is σ = 2303240210. Its totient is φ = 2303240208.

The previous prime is 2303240197. The next prime is 2303240273. The reversal of 2303240209 is 9020423032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206650625 + 96589584 = 46975^2 + 9828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303240209 - 2³¹ = 155756561 is a prime.

It is not a weakly prime, because it can be changed into another prime (2303240609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151620104 + 1151620105.

It is an arithmetic number, because the mean of its divisors is an integer number (1151620105).

Almost surely, 2^2303240209 is an apocalyptic number.

It is an amenable number.

2303240209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303240209 is an equidigital number, since it uses as much as digits as its factorization.

2303240209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2303240209 is about 47992.0848578180. The cubic root of 2303240209 is about 1320.6256998802.

The spelling of 2303240209 in words is "two billion, three hundred three million, two hundred forty thousand, two hundred nine".