2123830520 has 96 divisors (see below), whose sum is σ = 5616611280. Its totient is φ = 720599040.

The previous prime is 2123830487. The next prime is 2123830543. The reversal of 2123830520 is 250383212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123830520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184535 + ... + 195705.

Almost surely, 2^2123830520 is an apocalyptic number.

2123830520 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 2123830520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808305640).

2123830520 is an abundant number, since it is smaller than the sum of its proper divisors (3492780760).

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

2123830520 is a wasteful number, since it uses less digits than its factorization.

2123830520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11293 (or 11282 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2123830520 is about 46085.0357491453. The cubic root of 2123830520 is about 1285.4049040191.

The spelling of 2123830520 in words is "two billion, one hundred twenty-three million, eight hundred thirty thousand, five hundred twenty".