12133210320 has 400 divisors, whose sum is σ = 52540887168. Its totient is φ = 2521082880.

The previous prime is 12133210289. The next prime is 12133210321. The reversal of 12133210320 is 2301233121.

12133210320 is a `hidden beast` number, since 1 + 2 + 1 + 332 + 10 + 320 = 666.

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 = 12133210293 and 12133210302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133210321) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 486802 + ... + 511118.

Almost surely, 2^12133210320 is an apocalyptic number.

12133210320 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 12133210320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26270443584).

12133210320 is an abundant number, since it is smaller than the sum of its proper divisors (40407676848).

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

12133210320 is a wasteful number, since it uses less digits than its factorization.

12133210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24360 (or 24345 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12133210320 its reverse (2301233121), we get a palindrome (14434443441).

The spelling of 12133210320 in words is "twelve billion, one hundred thirty-three million, two hundred ten thousand, three hundred twenty".