20201031021120 has 224 divisors, whose sum is σ = 64846860318720. Its totient is φ = 5327753994240.

The previous prime is 20201031021103. The next prime is 20201031021203. The reversal of 20201031021120 is 2112013010202.

20201031021120 is digitally balanced in base 5, 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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20201031021120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31402866 + ... + 32039694.

Almost surely, 2^{20201031021120} is an apocalyptic number.

20201031021120 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 20201031021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32423430159360).

20201031021120 is an abundant number, since it is smaller than the sum of its proper divisors (44645829297600).

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

20201031021120 is a wasteful number, since it uses less digits than its factorization.

20201031021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637213 (or 637203 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20201031021120 its reverse (2112013010202), we get a palindrome (22313044031322).

The spelling of 20201031021120 in words is "twenty trillion, two hundred one billion, thirty-one million, twenty-one thousand, one hundred twenty".