3120002000280 has 256 divisors, whose sum is σ = 11396348006400. Its totient is φ = 752971714560.

The previous prime is 3120002000249. The next prime is 3120002000281. The reversal of 3120002000280 is 820002000213.

It is a happy number.

It is a super-2 number, since 2×3120002000280² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120002000281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2060392 + ... + 3238088.

It is an arithmetic number, because the mean of its divisors is an integer number (44516984400).

Almost surely, 2^{3120002000280} is an apocalyptic number.

3120002000280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3120002000280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5698174003200).

3120002000280 is an abundant number, since it is smaller than the sum of its proper divisors (8276346006120).

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

3120002000280 is a wasteful number, since it uses less digits than its factorization.

3120002000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177951 (or 1177941 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 3120002000280 its reverse (820002000213), we get a palindrome (3940004000493).

The spelling of 3120002000280 in words is "three trillion, one hundred twenty billion, two million, two hundred eighty", and thus it is an aban number.