2111100320 has 144 divisors (see below), whose sum is σ = 5889814560. Its totient is φ = 712825344.

The previous prime is 2111100311. The next prime is 2111100323. The reversal of 2111100320 is 230011112.

It is a super-2 number, since 2×2111100320² = 8913489122208204800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111100323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523271 + ... + 527289.

It is an arithmetic number, because the mean of its divisors is an integer number (40901490).

Almost surely, 2^2111100320 is an apocalyptic number.

2111100320 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 2111100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2944907280).

2111100320 is an abundant number, since it is smaller than the sum of its proper divisors (3778714240).

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

2111100320 is a wasteful number, since it uses less digits than its factorization.

2111100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115 (or 4100 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111100320 is about 45946.7117430617. The cubic root of 2111100320 is about 1282.8315246533.

Adding to 2111100320 its reverse (230011112), we get a palindrome (2341111432).

The spelling of 2111100320 in words is "two billion, one hundred eleven million, one hundred thousand, three hundred twenty".