3120500000 has 126 divisors (see below), whose sum is σ = 7777693413. Its totient is φ = 1232400000.

The previous prime is 3120499951. The next prime is 3120500003. The reversal of 3120500000 is 50213.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 4 ways, for example, as 532132624 + 2588367376 = 23068^2 + 50876^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=39500.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120500003) 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 in 20 ways as a sum of consecutive naturals, for example, 39499961 + ... + 39500039.

Almost surely, 2^3120500000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120500000

3120500000 is an abundant number, since it is smaller than the sum of its proper divisors (4657193413).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3120500000 is an frugal number, since it uses more digits than its factorization.

3120500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 3120500000 is about 55861.4357137373. The cubic root of 3120500000 is about 1461.3067677327.

Adding to 3120500000 its reverse (50213), we get a palindrome (3120550213).

The spelling of 3120500000 in words is "three billion, one hundred twenty million, five hundred thousand".