2123331112 has 192 divisors, whose sum is σ = 5106032640. Its totient is φ = 822729600.

The previous prime is 2123331109. The next prime is 2123331113. The reversal of 2123331112 is 2111333212.

It is a super-2 number, since 2×2123331112² = 9017070022374313088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2123331112.

It is not an unprimeable number, because it can be changed into a prime (2123331113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19844163 + ... + 19844269.

It is an arithmetic number, because the mean of its divisors is an integer number (26593920).

Almost surely, 2^2123331112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2553016320).

2123331112 is an abundant number, since it is smaller than the sum of its proper divisors (2982701528).

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

2123331112 is a wasteful number, since it uses less digits than its factorization.

2123331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 241 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 2123331112 is about 46079.6170991036. The cubic root of 2123331112 is about 1285.3041439680.

Adding to 2123331112 its reverse (2111333212), we get a palindrome (4234664324).

The spelling of 2123331112 in words is "two billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred twelve".