12320044000 has 96 divisors (see below), whose sum is σ = 33022315872. Its totient is φ = 4480000000.

The previous prime is 12320043959. The next prime is 12320044003. The reversal of 12320044000 is 44002321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320044003) 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 15 ways as a sum of consecutive naturals, for example, 96001 + ... + 184000.

It is an arithmetic number, because the mean of its divisors is an integer number (343982457).

Almost surely, 2^12320044000 is an apocalyptic number.

12320044000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320044000 is an abundant number, since it is smaller than the sum of its proper divisors (20702271872).

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

12320044000 is a wasteful number, since it uses less digits than its factorization.

12320044000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280037 (or 280019 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 12320044000 its reverse (44002321), we get a palindrome (12364046321).

The spelling of 12320044000 in words is "twelve billion, three hundred twenty million, forty-four thousand".