12112000203312 has 30 divisors (see below), whose sum is σ = 33896778347172. Its totient is φ = 4037333401056.

The previous prime is 12112000203263. The next prime is 12112000203361. The reversal of 12112000203312 is 21330200021121.

It is an interprime number because it is at equal distance from previous prime (12112000203263) and next prime (12112000203361).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42055556118 + ... + 42055556405.

Almost surely, 2^{12112000203312} is an apocalyptic number.

12112000203312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112000203312 is an abundant number, since it is smaller than the sum of its proper divisors (21784778143860).

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

12112000203312 is a wasteful number, since it uses less digits than its factorization.

12112000203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84111112537 (or 84111112528 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112000203312 its reverse (21330200021121), we get a palindrome (33442200224433).

The spelling of 12112000203312 in words is "twelve trillion, one hundred twelve billion, two hundred three thousand, three hundred twelve".