13231122112 has 112 divisors (see below), whose sum is σ = 29847499360. Its totient is φ = 5768921088.

The previous prime is 13231122103. The next prime is 13231122127. The reversal of 13231122112 is 21122113231.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 13231122112.

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, 6843898 + ... + 6845830.

It is an arithmetic number, because the mean of its divisors is an integer number (266495530).

Almost surely, 2^13231122112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14923749680).

13231122112 is an abundant number, since it is smaller than the sum of its proper divisors (16616377248).

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

13231122112 is a wasteful number, since it uses less digits than its factorization.

13231122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2400 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 13231122112 its reverse (21122113231), we get a palindrome (34353235343).

The spelling of 13231122112 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred twelve".