13012332112 has 60 divisors (see below), whose sum is σ = 27483983100. Its totient is φ = 5965200384.

The previous prime is 13012332079. The next prime is 13012332143. The reversal of 13012332112 is 21123321031.

It can be written as a sum of positive squares in 6 ways, for example, as 1174021696 + 11838310416 = 34264^2 + 108804^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13012332112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 386748 + ... + 419044.

It is an arithmetic number, because the mean of its divisors is an integer number (458066385).

Almost surely, 2^13012332112 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 13012332112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13741991550).

13012332112 is an abundant number, since it is smaller than the sum of its proper divisors (14471650988).

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

13012332112 is a wasteful number, since it uses less digits than its factorization.

13012332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32480 (or 32461 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13012332112 its reverse (21123321031), we get a palindrome (34135653143).

The spelling of 13012332112 in words is "thirteen billion, twelve million, three hundred thirty-two thousand, one hundred twelve".