30317742823 has 2 divisors, whose sum is σ = 30317742824. Its totient is φ = 30317742822.

The previous prime is 30317742811. The next prime is 30317742839. The reversal of 30317742823 is 32824771303.

It is a weak prime.

It is an emirp because it is prime and its reverse (32824771303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30317742823 - 2⁹ = 30317742311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30317742893) 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, 15158871411 + 15158871412.

It is an arithmetic number, because the mean of its divisors is an integer number (15158871412).

Almost surely, 2^30317742823 is an apocalyptic number.

30317742823 is a deficient number, since it is larger than the sum of its proper divisors (1).

30317742823 is an equidigital number, since it uses as much as digits as its factorization.

30317742823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 30317742823 in words is "thirty billion, three hundred seventeen million, seven hundred forty-two thousand, eight hundred twenty-three".