2112660312 has 128 divisors (see below), whose sum is σ = 6727795200. Its totient is φ = 538195968.

The previous prime is 2112660301. The next prime is 2112660313. The reversal of 2112660312 is 2130662112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112660313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34798 + ... + 73730.

It is an arithmetic number, because the mean of its divisors is an integer number (52560900).

Almost surely, 2^2112660312 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 2112660312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3363897600).

2112660312 is an abundant number, since it is smaller than the sum of its proper divisors (4615134888).

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

2112660312 is a wasteful number, since it uses less digits than its factorization.

2112660312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38985 (or 38981 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2112660312 is about 45963.6847086915. The cubic root of 2112660312 is about 1283.1474285085.

The spelling of 2112660312 in words is "two billion, one hundred twelve million, six hundred sixty thousand, three hundred twelve".