13231110012 has 48 divisors (see below), whose sum is σ = 31566888192. Its totient is φ = 4312281600.

The previous prime is 13231110007. The next prime is 13231110071. The reversal of 13231110012 is 21001113231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13231109973 and 13231110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28137 + ... + 165087.

It is an arithmetic number, because the mean of its divisors is an integer number (657643504).

Almost surely, 2^13231110012 is an apocalyptic number.

13231110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13231110012 is an abundant number, since it is smaller than the sum of its proper divisors (18335778180).

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

13231110012 is a wasteful number, since it uses less digits than its factorization.

13231110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137138 (or 137136 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13231110012 its reverse (21001113231), we get a palindrome (34232223243).

The spelling of 13231110012 in words is "thirteen billion, two hundred thirty-one million, one hundred ten thousand, twelve".