30030530281 has 2 divisors, whose sum is σ = 30030530282. Its totient is φ = 30030530280.

The previous prime is 30030530279. The next prime is 30030530293. The reversal of 30030530281 is 18203503003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28084397056 + 1946133225 = 167584^2 + 44115^2 .

It is a cyclic number.

It is not a de Polignac number, because 30030530281 - 2¹ = 30030530279 is a prime.

It is a super-2 number, since 2×30030530281² (a number of 22 digits) contains 22 as substring.

Together with 30030530279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30030530251) 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, 15015265140 + 15015265141.

It is an arithmetic number, because the mean of its divisors is an integer number (15015265141).

Almost surely, 2^30030530281 is an apocalyptic number.

It is an amenable number.

30030530281 is a deficient number, since it is larger than the sum of its proper divisors (1).

30030530281 is an equidigital number, since it uses as much as digits as its factorization.

30030530281 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.

The spelling of 30030530281 in words is "thirty billion, thirty million, five hundred thirty thousand, two hundred eighty-one".