2012112320 has 56 divisors (see below), whose sum is σ = 4811572800. Its totient is φ = 801446912.

The previous prime is 2012112301. The next prime is 2012112343. The reversal of 2012112320 is 232112102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2012112295 and 2012112304.

It is a congruent number.

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, 63326 + ... + 89634.

Almost surely, 2^2012112320 is an apocalyptic number.

2012112320 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 2012112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405786400).

2012112320 is an abundant number, since it is smaller than the sum of its proper divisors (2799460480).

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

2012112320 is a wasteful number, since it uses less digits than its factorization.

2012112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26565 (or 26555 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012112320 is about 44856.5749918560. The cubic root of 2012112320 is about 1262.4593604538.

Adding to 2012112320 its reverse (232112102), we get a palindrome (2244224422).

The spelling of 2012112320 in words is "two billion, twelve million, one hundred twelve thousand, three hundred twenty".