2111320120 has 64 divisors (see below), whose sum is σ = 5846742720. Its totient is φ = 668196864.

The previous prime is 2111320103. The next prime is 2111320129. The reversal of 2111320120 is 210231112.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2111320120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111320129) 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, 286377 + ... + 293656.

It is an arithmetic number, because the mean of its divisors is an integer number (91355355).

Almost surely, 2^2111320120 is an apocalyptic number.

2111320120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111320120 is an abundant number, since it is smaller than the sum of its proper divisors (3735422600).

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

2111320120 is a wasteful number, since it uses less digits than its factorization.

2111320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580064 (or 580060 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2111320120 is about 45949.1035821157. The cubic root of 2111320120 is about 1282.8760443415.

Adding to 2111320120 its reverse (210231112), we get a palindrome (2321551232).

The spelling of 2111320120 in words is "two billion, one hundred eleven million, three hundred twenty thousand, one hundred twenty".