2009311 has 2 divisors, whose sum is σ = 2009312. Its totient is φ = 2009310.

The previous prime is 2009299. The next prime is 2009317. The reversal of 2009311 is 1139002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2009311 - 2¹¹ = 2007263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2009317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1004655 + 1004656.

It is an arithmetic number, because the mean of its divisors is an integer number (1004656).

2^2009311 is an apocalyptic number.

2009311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2009311 is an equidigital number, since it uses as much as digits as its factorization.

2009311 is an evil number, because the sum of its binary digits is even.

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

The square root of 2009311 is about 1417.5016754840. The cubic root of 2009311 is about 126.1873211076.

The spelling of 2009311 in words is "two million, nine thousand, three hundred eleven".