12321103201232 has 160 divisors (see below), whose sum is σ = 29216801433600. Its totient is φ = 4919719140864.

The previous prime is 12321103201201. The next prime is 12321103201249. The reversal of 12321103201232 is 23210230112321.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 12321103201198 and 12321103201207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16194383 + ... + 16938129.

It is an arithmetic number, because the mean of its divisors is an integer number (182605008960).

Almost surely, 2^{12321103201232} 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 12321103201232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14608400716800).

12321103201232 is an abundant number, since it is smaller than the sum of its proper divisors (16895698232368).

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

12321103201232 is a wasteful number, since it uses less digits than its factorization.

12321103201232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743953 (or 743947 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12321103201232 its reverse (23210230112321), we get a palindrome (35531333313553).

The spelling of 12321103201232 in words is "twelve trillion, three hundred twenty-one billion, one hundred three million, two hundred one thousand, two hundred thirty-two".