3120020000 has 120 divisors (see below), whose sum is σ = 7784505036. Its totient is φ = 1230336000.

The previous prime is 3120019999. The next prime is 3120020027. The reversal of 3120020000 is 200213.

It can be written as a sum of positive squares in 10 ways, for example, as 811794064 + 2308225936 = 28492^2 + 48044^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3120020000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1458932 + ... + 1461068.

Almost surely, 2^3120020000 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 3120020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3892252518).

3120020000 is an abundant number, since it is smaller than the sum of its proper divisors (4664485036).

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

3120020000 is an equidigital number, since it uses as much as digits as its factorization.

3120020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 3120020000 is about 55857.1392035074. The cubic root of 3120020000 is about 1461.2318370895.

Adding to 3120020000 its reverse (200213), we get a palindrome (3120220213).

The spelling of 3120020000 in words is "three billion, one hundred twenty million, twenty thousand".