21023230300230 has 128 divisors (see below), whose sum is σ = 52672430131200. Its totient is φ = 5363608320000.

The previous prime is 21023230300183. The next prime is 21023230300243. The reversal of 21023230300230 is 3200303232012.

It is a junction number, because it is equal to n+sod(n) for n = 21023230300197 and 21023230300206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52479831 + ... + 52878909.

It is an arithmetic number, because the mean of its divisors is an integer number (411503360400).

Almost surely, 2^{21023230300230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21023230300230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26336215065600).

21023230300230 is an abundant number, since it is smaller than the sum of its proper divisors (31649199830970).

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

21023230300230 is a wasteful number, since it uses less digits than its factorization.

21023230300230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399670.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21023230300230 its reverse (3200303232012), we get a palindrome (24223533532242).

The spelling of 21023230300230 in words is "twenty-one trillion, twenty-three billion, two hundred thirty million, three hundred thousand, two hundred thirty".