12320322120 has 96 divisors (see below), whose sum is σ = 40150581120. Its totient is φ = 3276432000.

The previous prime is 12320322103. The next prime is 12320322143. The reversal of 12320322120 is 2122302321.

12320322120 is a `hidden beast` number, since 1 + 2 + 320 + 322 + 1 + 20 = 666.

It is a super-2 number, since 2×12320322120² (a number of 21 digits) contains 22 as substring.

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 = 12320322093 and 12320322102.

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, 85495 + ... + 178745.

It is an arithmetic number, because the mean of its divisors is an integer number (418235220).

Almost surely, 2^12320322120 is an apocalyptic number.

12320322120 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 12320322120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20075290560).

12320322120 is an abundant number, since it is smaller than the sum of its proper divisors (27830259000).

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

12320322120 is a wasteful number, since it uses less digits than its factorization.

12320322120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93635 (or 93628 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12320322120 its reverse (2122302321), we get a palindrome (14442624441).

The spelling of 12320322120 in words is "twelve billion, three hundred twenty million, three hundred twenty-two thousand, one hundred twenty".