2123320120 has 16 divisors (see below), whose sum is σ = 4777470360. Its totient is φ = 849328032.

The previous prime is 2123320037. The next prime is 2123320127. The reversal of 2123320120 is 210233212.

It is a junction number, because it is equal to n+sod(n) for n = 2123320094 and 2123320103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123320127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26541462 + ... + 26541541.

Almost surely, 2^2123320120 is an apocalyptic number.

2123320120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123320120 is an abundant number, since it is smaller than the sum of its proper divisors (2654150240).

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

2123320120 is a wasteful number, since it uses less digits than its factorization.

2123320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53083014 (or 53083010 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2123320120 is about 46079.4978271248. The cubic root of 2123320120 is about 1285.3019260555.

Adding to 2123320120 its reverse (210233212), we get a palindrome (2333553332).

The spelling of 2123320120 in words is "two billion, one hundred twenty-three million, three hundred twenty thousand, one hundred twenty".