2101043120 has 80 divisors (see below), whose sum is σ = 5337301248. Its totient is φ = 762827520.

The previous prime is 2101043117. The next prime is 2101043129. The reversal of 2101043120 is 213401012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2101043095 and 2101043104.

It is not an unprimeable number, because it can be changed into a prime (2101043129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726317 + ... + 729203.

Almost surely, 2^2101043120 is an apocalyptic number.

2101043120 is a gapful number since it is divisible by the number (20) 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 2101043120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668650624).

2101043120 is an abundant number, since it is smaller than the sum of its proper divisors (3236258128).

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

2101043120 is a wasteful number, since it uses less digits than its factorization.

2101043120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3732 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101043120 is about 45837.1369088428. The cubic root of 2101043120 is about 1280.7911612772.

Adding to 2101043120 its reverse (213401012), we get a palindrome (2314444132).

The spelling of 2101043120 in words is "two billion, one hundred one million, forty-three thousand, one hundred twenty".