4001120320 has 56 divisors (see below), whose sum is σ = 10029139200. Its totient is φ = 1516211712.

The previous prime is 4001120309. The next prime is 4001120359. The reversal of 4001120320 is 230211004.

It is a self number, because there is not a number n which added to its sum of digits gives 4001120320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322960 + ... + 335119.

Almost surely, 2^4001120320 is an apocalyptic number.

4001120320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4001120320 is an abundant number, since it is smaller than the sum of its proper divisors (6028018880).

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

4001120320 is a wasteful number, since it uses less digits than its factorization.

4001120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658115 (or 658105 counting only the distinct ones).

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

The square root of 4001120320 is about 63254.4094905644. The cubic root of 4001120320 is about 1587.5492378966.

Adding to 4001120320 its reverse (230211004), we get a palindrome (4231331324).

The spelling of 4001120320 in words is "four billion, one million, one hundred twenty thousand, three hundred twenty".