2123120 has 20 divisors (see below), whose sum is σ = 4936440. Its totient is φ = 849216.

The previous prime is 2123087. The next prime is 2123123. The reversal of 2123120 is 213212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123123) 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, 13190 + ... + 13349.

It is an arithmetic number, because the mean of its divisors is an integer number (246822).

2^2123120 is an apocalyptic number.

2123120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123120 is an abundant number, since it is smaller than the sum of its proper divisors (2813320).

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

2123120 is a wasteful number, since it uses less digits than its factorization.

2123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26552 (or 26546 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2123120 is about 1457.0929963458. The cubic root of 2123120 is about 128.5261545474.

Adding to 2123120 its reverse (213212), we get a palindrome (2336332).

The spelling of 2123120 in words is "two million, one hundred twenty-three thousand, one hundred twenty".