12120331112312 has 8 divisors (see below), whose sum is σ = 22725620835600. Its totient is φ = 6060165556152.

The previous prime is 12120331112311. The next prime is 12120331112341. The reversal of 12120331112312 is 21321113302121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120331112311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757520694512 + ... + 757520694527.

It is an arithmetic number, because the mean of its divisors is an integer number (2840702604450).

Almost surely, 2^{12120331112312} is an apocalyptic number.

It is an amenable number.

12120331112312 is a deficient number, since it is larger than the sum of its proper divisors (10605289723288).

12120331112312 is a wasteful number, since it uses less digits than its factorization.

12120331112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515041389045 (or 1515041389041 counting only the distinct ones).

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

Adding to 12120331112312 its reverse (21321113302121), we get a palindrome (33441444414433).

The spelling of 12120331112312 in words is "twelve trillion, one hundred twenty billion, three hundred thirty-one million, one hundred twelve thousand, three hundred twelve".