13321231233112 has 64 divisors (see below), whose sum is σ = 28154711669760. Its totient is φ = 5853993340800.

The previous prime is 13321231233103. The next prime is 13321231233133. The reversal of 13321231233112 is 21133213212331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353223 + ... + 5173705.

It is an arithmetic number, because the mean of its divisors is an integer number (439917369840).

Almost surely, 2^{13321231233112} 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 13321231233112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14077355834880).

13321231233112 is an abundant number, since it is smaller than the sum of its proper divisors (14833480436648).

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

13321231233112 is a wasteful number, since it uses less digits than its factorization.

13321231233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821544 (or 4821540 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

Adding to 13321231233112 its reverse (21133213212331), we get a palindrome (34454444445443).

The spelling of 13321231233112 in words is "thirteen trillion, three hundred twenty-one billion, two hundred thirty-one million, two hundred thirty-three thousand, one hundred twelve".