12112303312 has 40 divisors (see below), whose sum is σ = 25305255360. Its totient is φ = 5597464320.

The previous prime is 12112303303. The next prime is 12112303351. The reversal of 12112303312 is 21330321121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12112303312.

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, 473428 + ... + 498355.

It is an arithmetic number, because the mean of its divisors is an integer number (632631384).

Almost surely, 2^12112303312 is an apocalyptic number.

It is an amenable number.

12112303312 is an abundant number, since it is smaller than the sum of its proper divisors (13192952048).

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

12112303312 is a wasteful number, since it uses less digits than its factorization.

12112303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971851 (or 971845 counting only the distinct ones).

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

Adding to 12112303312 its reverse (21330321121), we get a palindrome (33442624433).

The spelling of 12112303312 in words is "twelve billion, one hundred twelve million, three hundred three thousand, three hundred twelve".