12803512920 has 64 divisors (see below), whose sum is σ = 41902410240. Its totient is φ = 3103881600.

The previous prime is 12803512907. The next prime is 12803512937. The reversal of 12803512920 is 2921530821.

It is a happy number.

12803512920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4848496 + ... + 4851135.

It is an arithmetic number, because the mean of its divisors is an integer number (654725160).

Almost surely, 2^12803512920 is an apocalyptic number.

12803512920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12803512920 is an abundant number, since it is smaller than the sum of its proper divisors (29098897320).

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

12803512920 is a wasteful number, since it uses less digits than its factorization.

12803512920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9699656 (or 9699652 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 12803512920 in words is "twelve billion, eight hundred three million, five hundred twelve thousand, nine hundred twenty".