210310000009 has 2 divisors, whose sum is σ = 210310000010. Its totient is φ = 210310000008.

The previous prime is 210309999983. The next prime is 210310000027. The reversal of 210310000009 is 900000013012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164182988025 + 46127011984 = 405195^2 + 214772^2 .

It is a cyclic number.

It is not a de Polignac number, because 210310000009 - 2¹³ = 210309991817 is a prime.

It is a super-2 number, since 2×210310000009² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210309999947 and 210310000001.

It is not a weakly prime, because it can be changed into another prime (210310000039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105155000004 + 105155000005.

It is an arithmetic number, because the mean of its divisors is an integer number (105155000005).

Almost surely, 2^210310000009 is an apocalyptic number.

It is an amenable number.

210310000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

210310000009 is an equidigital number, since it uses as much as digits as its factorization.

210310000009 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 spelling of 210310000009 in words is "two hundred ten billion, three hundred ten million, nine", and thus it is an aban number.