2101003320 has 128 divisors (see below), whose sum is σ = 6813273600. Its totient is φ = 515234304.

The previous prime is 2101003277. The next prime is 2101003321. The reversal of 2101003320 is 233001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2101003296 and 2101003305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101003321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439101 + ... + 443859.

It is an arithmetic number, because the mean of its divisors is an integer number (53228700).

Almost surely, 2^2101003320 is an apocalyptic number.

2101003320 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 2101003320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3406636800).

2101003320 is an abundant number, since it is smaller than the sum of its proper divisors (4712270280).

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

2101003320 is a wasteful number, since it uses less digits than its factorization.

2101003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069 (or 5065 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2101003320 is about 45836.7027609971. The cubic root of 2101003320 is about 1280.7830738960.

Adding to 2101003320 its reverse (233001012), we get a palindrome (2334004332).

The spelling of 2101003320 in words is "two billion, one hundred one million, three thousand, three hundred twenty".