2311352209 has 2 divisors, whose sum is σ = 2311352210. Its totient is φ = 2311352208.

The previous prime is 2311352143. The next prime is 2311352243. The reversal of 2311352209 is 9022531132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1343955600 + 967396609 = 36660^2 + 31103^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311352209 - 2⁹ = 2311351697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2311352609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155676104 + 1155676105.

It is an arithmetic number, because the mean of its divisors is an integer number (1155676105).

Almost surely, 2^2311352209 is an apocalyptic number.

It is an amenable number.

2311352209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311352209 is an equidigital number, since it uses as much as digits as its factorization.

2311352209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2311352209 is about 48076.5245104094. The cubic root of 2311352209 is about 1322.1742955271.

The spelling of 2311352209 in words is "two billion, three hundred eleven million, three hundred fifty-two thousand, two hundred nine".