2013211309 has 2 divisors, whose sum is σ = 2013211310. Its totient is φ = 2013211308.

The previous prime is 2013211303. The next prime is 2013211337. The reversal of 2013211309 is 9031123102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1899042084 + 114169225 = 43578^2 + 10685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013211309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2013211309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013211303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006605654 + 1006605655.

It is an arithmetic number, because the mean of its divisors is an integer number (1006605655).

Almost surely, 2^2013211309 is an apocalyptic number.

It is an amenable number.

2013211309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013211309 is an equidigital number, since it uses as much as digits as its factorization.

2013211309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2013211309 is about 44868.8233520782. The cubic root of 2013211309 is about 1262.6891647933.

The spelling of 2013211309 in words is "two billion, thirteen million, two hundred eleven thousand, three hundred nine".