12023331320 has 256 divisors, whose sum is σ = 37100851200. Its totient is φ = 3385128960.

The previous prime is 12023331289. The next prime is 12023331401. The reversal of 12023331320 is 2313332021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12023331292 and 12023331301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1878686 + ... + 1885074.

It is an arithmetic number, because the mean of its divisors is an integer number (144925200).

Almost surely, 2^12023331320 is an apocalyptic number.

12023331320 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 12023331320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18550425600).

12023331320 is an abundant number, since it is smaller than the sum of its proper divisors (25077519880).

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

12023331320 is a wasteful number, since it uses less digits than its factorization.

12023331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6474 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12023331320 its reverse (2313332021), we get a palindrome (14336663341).

It can be divided in two parts, 12023 and 331320, that added together give a palindrome (343343).

The spelling of 12023331320 in words is "twelve billion, twenty-three million, three hundred thirty-one thousand, three hundred twenty".