2303231209 has 2 divisors, whose sum is σ = 2303231210. Its totient is φ = 2303231208.

The previous prime is 2303231141. The next prime is 2303231261. The reversal of 2303231209 is 9021323032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1639035225 + 664195984 = 40485^2 + 25772^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303231209 - 2⁷ = 2303231081 is a prime.

It is a super-2 number, since 2×2303231209² = 10609748004223203362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2303231269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151615604 + 1151615605.

It is an arithmetic number, because the mean of its divisors is an integer number (1151615605).

Almost surely, 2^2303231209 is an apocalyptic number.

It is an amenable number.

2303231209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303231209 is an equidigital number, since it uses as much as digits as its factorization.

2303231209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 2303231209 is about 47991.9910922646. The cubic root of 2303231209 is about 1320.6239797460.

The spelling of 2303231209 in words is "two billion, three hundred three million, two hundred thirty-one thousand, two hundred nine".