12321013200 has 60 divisors (see below), whose sum is σ = 39468316128. Its totient is φ = 3285603200.

The previous prime is 12321013171. The next prime is 12321013223. The reversal of 12321013200 is 231012321.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12321013200.

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, 5132556 + ... + 5134955.

Almost surely, 2^12321013200 is an apocalyptic number.

12321013200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321013200 is an abundant number, since it is smaller than the sum of its proper divisors (27147302928).

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

12321013200 is a wasteful number, since it uses less digits than its factorization.

12321013200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267532 (or 10267521 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12321013200 its reverse (231012321), we get a palindrome (12552025521).

The spelling of 12321013200 in words is "twelve billion, three hundred twenty-one million, thirteen thousand, two hundred".