2144111320 has 64 divisors (see below), whose sum is σ = 5228637120. Its totient is φ = 786599424.

The previous prime is 2144111309. The next prime is 2144111323. The reversal of 2144111320 is 231114412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144111323) 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, 68509 + ... + 94771.

It is an arithmetic number, because the mean of its divisors is an integer number (81697455).

Almost surely, 2^2144111320 is an apocalyptic number.

2144111320 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 2144111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2614318560).

2144111320 is an abundant number, since it is smaller than the sum of its proper divisors (3084525800).

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

2144111320 is a wasteful number, since it uses less digits than its factorization.

2144111320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26444 (or 26440 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2144111320 is about 46304.5496684721. The cubic root of 2144111320 is about 1289.4834620470.

Adding to 2144111320 its reverse (231114412), we get a palindrome (2375225732).

It can be divided in two parts, 21441 and 11320, that added together give a square (32761 = 181²).

The spelling of 2144111320 in words is "two billion, one hundred forty-four million, one hundred eleven thousand, three hundred twenty".