12328420812 has 24 divisors (see below), whose sum is σ = 28848750000. Its totient is φ = 4097697216.

The previous prime is 12328420763. The next prime is 12328420817. The reversal of 12328420812 is 21802482321.

It is not an unprimeable number, because it can be changed into a prime (12328420817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1467687 + ... + 1476062.

It is an arithmetic number, because the mean of its divisors is an integer number (1202031250).

Almost surely, 2^12328420812 is an apocalyptic number.

12328420812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12328420812 is an abundant number, since it is smaller than the sum of its proper divisors (16520329188).

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

12328420812 is a wasteful number, since it uses less digits than its factorization.

12328420812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944105 (or 2944103 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 12328420812 in words is "twelve billion, three hundred twenty-eight million, four hundred twenty thousand, eight hundred twelve".