2001234120 has 32 divisors (see below), whose sum is σ = 6003702720. Its totient is φ = 533662400.

The previous prime is 2001234113. The next prime is 2001234139. The reversal of 2001234120 is 214321002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2001234120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8338356 + ... + 8338595.

It is an arithmetic number, because the mean of its divisors is an integer number (187615710).

Almost surely, 2^2001234120 is an apocalyptic number.

2001234120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001234120 is an abundant number, since it is smaller than the sum of its proper divisors (4002468600).

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

2001234120 is a wasteful number, since it uses less digits than its factorization.

2001234120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676965 (or 16676961 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2001234120 is about 44735.1553031841. The cubic root of 2001234120 is about 1260.1801455707.

Adding to 2001234120 its reverse (214321002), we get a palindrome (2215555122).

The spelling of 2001234120 in words is "two billion, one million, two hundred thirty-four thousand, one hundred twenty".