2013320909 has 2 divisors, whose sum is σ = 2013320910. Its totient is φ = 2013320908.

The previous prime is 2013320899. The next prime is 2013320927. The reversal of 2013320909 is 9090233102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1685348809 + 327972100 = 41053^2 + 18110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013320909 is a prime.

It is a super-2 number, since 2×2013320909² = 8106922165233172562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013380909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006660454 + 1006660455.

It is an arithmetic number, because the mean of its divisors is an integer number (1006660455).

Almost surely, 2^2013320909 is an apocalyptic number.

It is an amenable number.

2013320909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013320909 is an equidigital number, since it uses as much as digits as its factorization.

2013320909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 2013320909 is about 44870.0446734790. The cubic root of 2013320909 is about 1262.7120781392.

The spelling of 2013320909 in words is "two billion, thirteen million, three hundred twenty thousand, nine hundred nine".