30213012308209 has 2 divisors, whose sum is σ = 30213012308210. Its totient is φ = 30213012308208.

The previous prime is 30213012308207. The next prime is 30213012308231. The reversal of 30213012308209 is 90280321031203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26868879590400 + 3344132717809 = 5183520^2 + 1828697^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213012308209 - 2¹ = 30213012308207 is a prime.

It is a super-2 number, since 2×30213012308209² (a number of 28 digits) contains 22 as substring.

Together with 30213012308207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30213012308207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106506154104 + 15106506154105.

It is an arithmetic number, because the mean of its divisors is an integer number (15106506154105).

Almost surely, 2^{30213012308209} is an apocalyptic number.

It is an amenable number.

30213012308209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213012308209 is an equidigital number, since it uses as much as digits as its factorization.

30213012308209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 30213012308209 in words is "thirty trillion, two hundred thirteen billion, twelve million, three hundred eight thousand, two hundred nine".