20012032320000 has 1200 divisors, whose sum is σ = 78875723838912. Its totient is φ = 4415201280000.

The previous prime is 20012032319989. The next prime is 20012032320017. The reversal of 20012032320000 is 2323021002.

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (15).

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 119 ways as a sum of consecutive naturals, for example, 5651518230 + ... + 5651521770.

Almost surely, 2^{20012032320000} is an apocalyptic number.

20012032320000 is a gapful number since it is divisible by the number (20) 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 20012032320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39437861919456).

20012032320000 is an abundant number, since it is smaller than the sum of its proper divisors (58863691518912).

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

20012032320000 is an frugal number, since it uses more digits than its factorization.

20012032320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3587 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20012032320000 its reverse (2323021002), we get a palindrome (20014355341002).

The spelling of 20012032320000 in words is "twenty trillion, twelve billion, thirty-two million, three hundred twenty thousand".