4001230120 has 16 divisors (see below), whose sum is σ = 9002767860. Its totient is φ = 1600492032.

The previous prime is 4001230099. The next prime is 4001230153. The reversal of 4001230120 is 210321004.

It can be written as a sum of positive squares in 2 ways, for example, as 4001068516 + 161604 = 63254^2 + 402^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4001230120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50015337 + ... + 50015416.

Almost surely, 2^4001230120 is an apocalyptic number.

4001230120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4001230120 is an abundant number, since it is smaller than the sum of its proper divisors (5001537740).

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

4001230120 is a wasteful number, since it uses less digits than its factorization.

4001230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100030764 (or 100030760 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4001230120 is about 63255.2774082922. The cubic root of 4001230120 is about 1587.5637597720.

Adding to 4001230120 its reverse (210321004), we get a palindrome (4211551124).

The spelling of 4001230120 in words is "four billion, one million, two hundred thirty thousand, one hundred twenty".