21020303301120 has 240 divisors, whose sum is σ = 72914643914112. Its totient is φ = 5596526960640.

The previous prime is 21020303301089. The next prime is 21020303301149. The reversal of 21020303301120 is 2110330302012.

21020303301120 is a `hidden beast` number, since 2 + 10 + 203 + 0 + 330 + 1 + 120 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21020303301093 and 21020303301102.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13815309 + ... + 15261171.

Almost surely, 2^{21020303301120} is an apocalyptic number.

21020303301120 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 21020303301120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36457321957056).

21020303301120 is an abundant number, since it is smaller than the sum of its proper divisors (51894340612992).

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

21020303301120 is a wasteful number, since it uses less digits than its factorization.

21020303301120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446523 (or 1446504 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21020303301120 its reverse (2110330302012), we get a palindrome (23130633603132).

The spelling of 21020303301120 in words is "twenty-one trillion, twenty billion, three hundred three million, three hundred one thousand, one hundred twenty".