2001120318 has 48 divisors (see below), whose sum is σ = 4605915600. Its totient is φ = 626123520.

The previous prime is 2001120301. The next prime is 2001120347. The reversal of 2001120318 is 8130211002.

It is a super-2 number, since 2×2001120318² = 8008965054224842248, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2001120318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10438 + ... + 64118.

It is an arithmetic number, because the mean of its divisors is an integer number (95956575).

Almost surely, 2^2001120318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001120318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2302957800).

2001120318 is an abundant number, since it is smaller than the sum of its proper divisors (2604795282).

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

2001120318 is a wasteful number, since it uses less digits than its factorization.

2001120318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53817 (or 53814 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2001120318 is about 44733.8833324361. The cubic root of 2001120318 is about 1260.1562580208.

The spelling of 2001120318 in words is "two billion, one million, one hundred twenty thousand, three hundred eighteen".