21030313022020 has 96 divisors (see below), whose sum is σ = 46210677520896. Its totient is φ = 8024239872000.

The previous prime is 21030313022003. The next prime is 21030313022023. The reversal of 21030313022020 is 2022031303012.

It is not an unprimeable number, because it can be changed into a prime (21030313022023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 977188860 + ... + 977210380.

It is an arithmetic number, because the mean of its divisors is an integer number (481361224176).

Almost surely, 2^{21030313022020} is an apocalyptic number.

21030313022020 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 21030313022020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23105338760448).

21030313022020 is an abundant number, since it is smaller than the sum of its proper divisors (25180364498876).

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

21030313022020 is a wasteful number, since it uses less digits than its factorization.

21030313022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27301 (or 27299 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21030313022020 its reverse (2022031303012), we get a palindrome (23052344325032).

The spelling of 21030313022020 in words is "twenty-one trillion, thirty billion, three hundred thirteen million, twenty-two thousand, twenty".