2123200000 has 120 divisors (see below), whose sum is σ = 5306472864. Its totient is φ = 848640000.

The previous prime is 2123199983. The next prime is 2123200007. The reversal of 2123200000 is 23212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 2123200000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123200007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1599337 + ... + 1600663.

Almost surely, 2^2123200000 is an apocalyptic number.

2123200000 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 2123200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2653236432).

2123200000 is an abundant number, since it is smaller than the sum of its proper divisors (3183272864).

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

2123200000 is an frugal number, since it uses more digits than its factorization.

2123200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1334 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2123200000 is about 46078.1944090695. The cubic root of 2123200000 is about 1285.2776883256.

Adding to 2123200000 its reverse (23212), we get a palindrome (2123223212).

The spelling of 2123200000 in words is "two billion, one hundred twenty-three million, two hundred thousand".