13231320112012 has 12 divisors (see below), whose sum is σ = 23693294154376. Its totient is φ = 6461807496480.

The previous prime is 13231320111979. The next prime is 13231320112013. The reversal of 13231320112012 is 21021102313231.

It is not an unprimeable number, because it can be changed into a prime (13231320112013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38463139689 + ... + 38463140032.

Almost surely, 2^{13231320112012} is an apocalyptic number.

It is an amenable number.

13231320112012 is a deficient number, since it is larger than the sum of its proper divisors (10461974042364).

13231320112012 is a wasteful number, since it uses less digits than its factorization.

13231320112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76926279768 (or 76926279766 counting only the distinct ones).

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

Adding to 13231320112012 its reverse (21021102313231), we get a palindrome (34252422425243).

The spelling of 13231320112012 in words is "thirteen trillion, two hundred thirty-one billion, three hundred twenty million, one hundred twelve thousand, twelve".