12331132440512 has 28 divisors (see below), whose sum is σ = 24698278716120. Its totient is φ = 6107944102656.

The previous prime is 12331132440509. The next prime is 12331132440533. The reversal of 12331132440512 is 21504423113321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent 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, 900338687 + ... + 900352382.

Almost surely, 2^{12331132440512} is an apocalyptic number.

It is an amenable number.

12331132440512 is an abundant number, since it is smaller than the sum of its proper divisors (12367146275608).

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

12331132440512 is a wasteful number, since it uses less digits than its factorization.

12331132440512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800691188 (or 1800691178 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 12331132440512 its reverse (21504423113321), we get a palindrome (33835555553833).

The spelling of 12331132440512 in words is "twelve trillion, three hundred thirty-one billion, one hundred thirty-two million, four hundred forty thousand, five hundred twelve".