2123025920 has 160 divisors (see below), whose sum is σ = 5289973920. Its totient is φ = 816578560.

The previous prime is 2123025913. The next prime is 2123025941. The reversal of 2123025920 is 295203212.

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 2123025920.

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, 11860391 + ... + 11860569.

It is an arithmetic number, because the mean of its divisors is an integer number (33062337).

Almost surely, 2^2123025920 is an apocalyptic number.

2123025920 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 2123025920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2644986960).

2123025920 is an abundant number, since it is smaller than the sum of its proper divisors (3166948000).

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

2123025920 is a wasteful number, since it uses less digits than its factorization.

2123025920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2123025920 is about 46076.3054074434. The cubic root of 2123025920 is about 1285.2425609620.

The spelling of 2123025920 in words is "two billion, one hundred twenty-three million, twenty-five thousand, nine hundred twenty".