2321442209 has 2 divisors, whose sum is σ = 2321442210. Its totient is φ = 2321442208.

The previous prime is 2321442163. The next prime is 2321442217. The reversal of 2321442209 is 9022441232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2251217809 + 70224400 = 47447^2 + 8380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321442209 - 2¹² = 2321438113 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2321442239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160721104 + 1160721105.

It is an arithmetic number, because the mean of its divisors is an integer number (1160721105).

Almost surely, 2^2321442209 is an apocalyptic number.

It is an amenable number.

2321442209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321442209 is an equidigital number, since it uses as much as digits as its factorization.

2321442209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2321442209 is about 48181.3471065308. The cubic root of 2321442209 is about 1324.0954469834.

It can be divided in two parts, 232 and 1442209, that added together give a palindrome (1442441).

The spelling of 2321442209 in words is "two billion, three hundred twenty-one million, four hundred forty-two thousand, two hundred nine".