3120005085 has 32 divisors (see below), whose sum is σ = 5336126208. Its totient is φ = 1552826880.

The previous prime is 3120005069. The next prime is 3120005149. The reversal of 3120005085 is 5805000213.

It is not a de Polignac number, because 3120005085 - 2⁴ = 3120005069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96142 + ... + 124431.

It is an arithmetic number, because the mean of its divisors is an integer number (166753944).

Almost surely, 2^3120005085 is an apocalyptic number.

It is an amenable number.

3120005085 is a deficient number, since it is larger than the sum of its proper divisors (2216121123).

3120005085 is a wasteful number, since it uses less digits than its factorization.

3120005085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220645.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 3120005085 is about 55857.0056931089. The cubic root of 3120005085 is about 1461.2295086527.

Adding to 3120005085 its reverse (5805000213), we get a palindrome (8925005298).

The spelling of 3120005085 in words is "three billion, one hundred twenty million, five thousand, eighty-five".