30316047173 has 4 divisors (see below), whose sum is σ = 31361428140. Its totient is φ = 29270666208.

The previous prime is 30316047163. The next prime is 30316047233. The reversal of 30316047173 is 37174061303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37174061303 = 457 ⋅81343679.

It can be written as a sum of positive squares in 2 ways, for example, as 18101818849 + 12214228324 = 134543^2 + 110518^2 .

It is a cyclic number.

It is not a de Polignac number, because 30316047173 - 2¹⁸ = 30315785029 is a prime.

It is a super-2 number, since 2×30316047173² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30316047143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522690440 + ... + 522690497.

It is an arithmetic number, because the mean of its divisors is an integer number (7840357035).

Almost surely, 2^30316047173 is an apocalyptic number.

It is an amenable number.

30316047173 is a deficient number, since it is larger than the sum of its proper divisors (1045380967).

30316047173 is a wasteful number, since it uses less digits than its factorization.

30316047173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045380966.

The product of its (nonzero) digits is 31752, while the sum is 35.

The spelling of 30316047173 in words is "thirty billion, three hundred sixteen million, forty-seven thousand, one hundred seventy-three".