2123251120 has 20 divisors (see below), whose sum is σ = 4936559040. Its totient is φ = 849300416.

The previous prime is 2123251111. The next prime is 2123251127. The reversal of 2123251120 is 211523212.

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

It is not an unprimeable number, because it can be changed into a prime (2123251127) 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, 13270240 + ... + 13270399.

It is an arithmetic number, because the mean of its divisors is an integer number (246827952).

Almost surely, 2^2123251120 is an apocalyptic number.

2123251120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123251120 is an abundant number, since it is smaller than the sum of its proper divisors (2813307920).

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

2123251120 is a wasteful number, since it uses less digits than its factorization.

2123251120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26540652 (or 26540646 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2123251120 is about 46078.7491149662. The cubic root of 2123251120 is about 1285.2880033953.

Adding to 2123251120 its reverse (211523212), we get a palindrome (2334774332).

The spelling of 2123251120 in words is "two billion, one hundred twenty-three million, two hundred fifty-one thousand, one hundred twenty".