2311009 has 2 divisors, whose sum is σ = 2311010. Its totient is φ = 2311008.

The previous prime is 2310991. The next prime is 2311013. The reversal of 2311009 is 9001132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2250000 + 61009 = 1500^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311009 - 2⁵ = 2310977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2310983 and 2311001.

It is not a weakly prime, because it can be changed into another prime (2311079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155504 + 1155505.

It is an arithmetic number, because the mean of its divisors is an integer number (1155505).

2^2311009 is an apocalyptic number.

It is an amenable number.

2311009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311009 is an equidigital number, since it uses as much as digits as its factorization.

2311009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2311009 is about 1520.2003157479. The cubic root of 2311009 is about 132.2108849771.

The spelling of 2311009 in words is "two million, three hundred eleven thousand, nine".