20304432004512 has 24 divisors (see below), whose sum is σ = 53299134012096. Its totient is φ = 6768144001472.

The previous prime is 20304432004487. The next prime is 20304432004517. The reversal of 20304432004512 is 21540023440302.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20304432004512.

It is not an unprimeable number, because it can be changed into a prime (20304432004517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105752249928 + ... + 105752250119.

It is an arithmetic number, because the mean of its divisors is an integer number (2220797250504).

Almost surely, 2^{20304432004512} is an apocalyptic number.

It is an amenable number.

20304432004512 is an abundant number, since it is smaller than the sum of its proper divisors (32994702007584).

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

20304432004512 is a wasteful number, since it uses less digits than its factorization.

20304432004512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211504500060 (or 211504500052 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20304432004512 its reverse (21540023440302), we get a palindrome (41844455444814).

The spelling of 20304432004512 in words is "twenty trillion, three hundred four billion, four hundred thirty-two million, four thousand, five hundred twelve".