30120673505 has 8 divisors (see below), whose sum is σ = 38925178152. Its totient is φ = 22242958848.

The previous prime is 30120673489. The next prime is 30120673507. The reversal of 30120673505 is 50537602103.

It can be written as a sum of positive squares in 4 ways, for example, as 220730449 + 29899943056 = 14857^2 + 172916^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30120673505 - 2⁴ = 30120673489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120673507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231697424 + ... + 231697553.

It is an arithmetic number, because the mean of its divisors is an integer number (4865647269).

Almost surely, 2^30120673505 is an apocalyptic number.

It is an amenable number.

30120673505 is a deficient number, since it is larger than the sum of its proper divisors (8804504647).

30120673505 is a wasteful number, since it uses less digits than its factorization.

30120673505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463394995.

The product of its (nonzero) digits is 18900, while the sum is 32.

The spelling of 30120673505 in words is "thirty billion, one hundred twenty million, six hundred seventy-three thousand, five hundred five".