12321106170 has 128 divisors (see below), whose sum is σ = 31054233600. Its totient is φ = 3124601088.

The previous prime is 12321106163. The next prime is 12321106183. The reversal of 12321106170 is 7160112321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12321106170.

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 63 ways as a sum of consecutive naturals, for example, 32169799 + ... + 32170181.

It is an arithmetic number, because the mean of its divisors is an integer number (242611200).

Almost surely, 2^12321106170 is an apocalyptic number.

12321106170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12321106170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15527116800).

12321106170 is an abundant number, since it is smaller than the sum of its proper divisors (18733127430).

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

12321106170 is a wasteful number, since it uses less digits than its factorization.

12321106170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 504, while the sum is 24.

Adding to 12321106170 its reverse (7160112321), we get a palindrome (19481218491).

The spelling of 12321106170 in words is "twelve billion, three hundred twenty-one million, one hundred six thousand, one hundred seventy".