2311342009 has 2 divisors, whose sum is σ = 2311342010. Its totient is φ = 2311342008.

The previous prime is 2311341971. The next prime is 2311342043. The reversal of 2311342009 is 9002431132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1350342009 + 961000000 = 36747^2 + 31000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311342009 - 2²⁷ = 2177124281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311342069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155671004 + 1155671005.

It is an arithmetic number, because the mean of its divisors is an integer number (1155671005).

Almost surely, 2^2311342009 is an apocalyptic number.

It is an amenable number.

2311342009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311342009 is an equidigital number, since it uses as much as digits as its factorization.

2311342009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2311342009 is about 48076.4184294130. The cubic root of 2311342009 is about 1322.1723506053.

The spelling of 2311342009 in words is "two billion, three hundred eleven million, three hundred forty-two thousand, nine".