2123310112 has 48 divisors (see below), whose sum is σ = 5211767232. Its totient is φ = 827262720.

The previous prime is 2123310109. The next prime is 2123310121. The reversal of 2123310112 is 2110133212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428403 + ... + 433330.

It is an arithmetic number, because the mean of its divisors is an integer number (108578484).

Almost surely, 2^2123310112 is an apocalyptic number.

2123310112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2123310112 is an abundant number, since it is smaller than the sum of its proper divisors (3088457120).

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

2123310112 is a wasteful number, since it uses less digits than its factorization.

2123310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861761 (or 861753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2123310112 is about 46079.3892320634. The cubic root of 2123310112 is about 1285.2999066832.

Adding to 2123310112 its reverse (2110133212), we get a palindrome (4233443324).

Subtracting from 2123310112 its reverse (2110133212), we obtain a square (13176900 = 3630²).

The spelling of 2123310112 in words is "two billion, one hundred twenty-three million, three hundred ten thousand, one hundred twelve".