20300421210312 has 384 divisors, whose sum is σ = 57718813593600. Its totient is φ = 5935297708032.

The previous prime is 20300421210263. The next prime is 20300421210323. The reversal of 20300421210312 is 21301212400302.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1063563633 + ... + 1063582719.

It is an arithmetic number, because the mean of its divisors is an integer number (150309410400).

Almost surely, 2^{20300421210312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300421210312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28859406796800).

20300421210312 is an abundant number, since it is smaller than the sum of its proper divisors (37418392383288).

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

20300421210312 is a wasteful number, since it uses less digits than its factorization.

20300421210312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19325 (or 19304 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20300421210312 its reverse (21301212400302), we get a palindrome (41601633610614).

The spelling of 20300421210312 in words is "twenty trillion, three hundred billion, four hundred twenty-one million, two hundred ten thousand, three hundred twelve".