2323209991 has 2 divisors, whose sum is σ = 2323209992. Its totient is φ = 2323209990.

The previous prime is 2323209947. The next prime is 2323210027. The reversal of 2323209991 is 1999023232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2323209991 - 2⁹ = 2323209479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2323209191) 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 as a sum of consecutive naturals, namely, 1161604995 + 1161604996.

It is an arithmetic number, because the mean of its divisors is an integer number (1161604996).

Almost surely, 2^2323209991 is an apocalyptic number.

2323209991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2323209991 is an equidigital number, since it uses as much as digits as its factorization.

2323209991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 2323209991 is about 48199.6887023143. The cubic root of 2323209991 is about 1324.4314619813.

The spelling of 2323209991 in words is "two billion, three hundred twenty-three million, two hundred nine thousand, nine hundred ninety-one".