12112312331020 has 48 divisors (see below), whose sum is σ = 28162358800128. Its totient is φ = 4338738740160.

The previous prime is 12112312330967. The next prime is 12112312331051. The reversal of 12112312331020 is 2013321321121.

It is a super-2 number, since 2×12112312331020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12112312330982 and 12112312331000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410850672 + ... + 410880151.

It is an arithmetic number, because the mean of its divisors is an integer number (586715808336).

Almost surely, 2^{12112312331020} is an apocalyptic number.

12112312331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112312331020 is an abundant number, since it is smaller than the sum of its proper divisors (16050046469108).

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

12112312331020 is a wasteful number, since it uses less digits than its factorization.

12112312331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821730910 (or 821730908 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12112312331020 its reverse (2013321321121), we get a palindrome (14125633652141).

The spelling of 12112312331020 in words is "twelve trillion, one hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, twenty".