12112312331021 has 8 divisors (see below), whose sum is σ = 14319975169920. Its totient is φ = 10023982618608.

The previous prime is 12112312330967. The next prime is 12112312331051. The reversal of 12112312331021 is 12013321321121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12112312331021 - 2³⁸ = 11837434424077 is a prime.

It is a super-2 number, since 2×12112312331021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112312331051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29833281401 + ... + 29833281806.

It is an arithmetic number, because the mean of its divisors is an integer number (1789996896240).

Almost surely, 2^{12112312331021} is an apocalyptic number.

It is an amenable number.

12112312331021 is a deficient number, since it is larger than the sum of its proper divisors (2207662838899).

12112312331021 is an equidigital number, since it uses as much as digits as its factorization.

12112312331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59666563243.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12112312331021 its reverse (12013321321121), we get a palindrome (24125633652142).

The spelling of 12112312331021 in words is "twelve trillion, one hundred twelve billion, three hundred twelve million, three hundred thirty-one thousand, twenty-one".