12320302320 has 120 divisors (see below), whose sum is σ = 41509477152. Its totient is φ = 3274790400.

The previous prime is 12320302289. The next prime is 12320302361. The reversal of 12320302320 is 2320302321.

It is a happy number.

12320302320 is a `hidden beast` number, since 1 + 23 + 20 + 302 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12320302293 and 12320302302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196410 + ... + 251430.

Almost surely, 2^12320302320 is an apocalyptic number.

12320302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12320302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20754738576).

12320302320 is an abundant number, since it is smaller than the sum of its proper divisors (29189174832).

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

12320302320 is a wasteful number, since it uses less digits than its factorization.

12320302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55351 (or 55342 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12320302320 its reverse (2320302321), we get a palindrome (14640604641).

Subtracting from 12320302320 its reverse (2320302321), we obtain a palindrome (9999999999).

The spelling of 12320302320 in words is "twelve billion, three hundred twenty million, three hundred two thousand, three hundred twenty".