2123000 has 64 divisors (see below), whose sum is σ = 5447520. Its totient is φ = 768000.

The previous prime is 2122979. The next prime is 2123027. The reversal of 2123000 is 3212.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10904 + ... + 11096.

2^2123000 is an apocalyptic number.

2123000 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 2123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2723760).

2123000 is an abundant number, since it is smaller than the sum of its proper divisors (3324520).

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

2123000 is a wasteful number, since it uses less digits than its factorization.

2123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 2123000 is about 1457.0518178843. The cubic root of 2123000 is about 128.5237330437.

Adding to 2123000 its reverse (3212), we get a palindrome (2126212).

The spelling of 2123000 in words is "two million, one hundred twenty-three thousand".