30724539203 has 2 divisors, whose sum is σ = 30724539204. Its totient is φ = 30724539202.

The previous prime is 30724539199. The next prime is 30724539233. The reversal of 30724539203 is 30293542703.

It is a weak prime.

It is an emirp because it is prime and its reverse (30293542703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30724539203 - 2² = 30724539199 is a prime.

It is not a weakly prime, because it can be changed into another prime (30724539233) 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, 15362269601 + 15362269602.

It is an arithmetic number, because the mean of its divisors is an integer number (15362269602).

Almost surely, 2^30724539203 is an apocalyptic number.

30724539203 is a deficient number, since it is larger than the sum of its proper divisors (1).

30724539203 is an equidigital number, since it uses as much as digits as its factorization.

30724539203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 30724539203 in words is "thirty billion, seven hundred twenty-four million, five hundred thirty-nine thousand, two hundred three".