2010311209 has 2 divisors, whose sum is σ = 2010311210. Its totient is φ = 2010311208.

The previous prime is 2010311203. The next prime is 2010311239. The reversal of 2010311209 is 9021130102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1853560809 + 156750400 = 43053^2 + 12520^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010311209 - 2²⁵ = 1976756777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2010311203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005155604 + 1005155605.

It is an arithmetic number, because the mean of its divisors is an integer number (1005155605).

Almost surely, 2^2010311209 is an apocalyptic number.

It is an amenable number.

2010311209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010311209 is an equidigital number, since it uses as much as digits as its factorization.

2010311209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2010311209 is about 44836.4941649099. The cubic root of 2010311209 is about 1262.0825577247.

The spelling of 2010311209 in words is "two billion, ten million, three hundred eleven thousand, two hundred nine".