30630538513 has 2 divisors, whose sum is σ = 30630538514. Its totient is φ = 30630538512.

The previous prime is 30630538493. The next prime is 30630538531. The reversal of 30630538513 is 31583503603.

Together with next prime (30630538531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18667210384 + 11963328129 = 136628^2 + 109377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30630538513 is a prime.

It is not a weakly prime, because it can be changed into another prime (30630538553) 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, 15315269256 + 15315269257.

It is an arithmetic number, because the mean of its divisors is an integer number (15315269257).

Almost surely, 2^30630538513 is an apocalyptic number.

It is an amenable number.

30630538513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30630538513 is an equidigital number, since it uses as much as digits as its factorization.

30630538513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 30630538513 in words is "thirty billion, six hundred thirty million, five hundred thirty-eight thousand, five hundred thirteen".