12120131323112 has 16 divisors (see below), whose sum is σ = 22725574260000. Its totient is φ = 6059978187120.

The previous prime is 12120131323109. The next prime is 12120131323121. The reversal of 12120131323112 is 21132313102121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10343564 + ... + 11455547.

It is an arithmetic number, because the mean of its divisors is an integer number (1420348391250).

Almost surely, 2^{12120131323112} is an apocalyptic number.

It is an amenable number.

12120131323112 is a deficient number, since it is larger than the sum of its proper divisors (10605442936888).

12120131323112 is a wasteful number, since it uses less digits than its factorization.

12120131323112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21868616 (or 21868612 counting only the distinct ones).

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

Adding to 12120131323112 its reverse (21132313102121), we get a palindrome (33252444425233).

The spelling of 12120131323112 in words is "twelve trillion, one hundred twenty billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred twelve".