30300305281 has 2 divisors, whose sum is σ = 30300305282. Its totient is φ = 30300305280.

The previous prime is 30300305279. The next prime is 30300305369. The reversal of 30300305281 is 18250300303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19439330625 + 10860974656 = 139425^2 + 104216^2 .

It is an emirp because it is prime and its reverse (18250300303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30300305281 - 2¹ = 30300305279 is a prime.

It is a super-2 number, since 2×30300305281² (a number of 22 digits) contains 22 as substring.

Together with 30300305279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30300305221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15150152640 + 15150152641.

It is an arithmetic number, because the mean of its divisors is an integer number (15150152641).

Almost surely, 2^30300305281 is an apocalyptic number.

It is an amenable number.

30300305281 is a deficient number, since it is larger than the sum of its proper divisors (1).

30300305281 is an equidigital number, since it uses as much as digits as its factorization.

30300305281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 30300305281 its reverse (18250300303), we get a palindrome (48550605584).

The spelling of 30300305281 in words is "thirty billion, three hundred million, three hundred five thousand, two hundred eighty-one".