21020213120230 has 8 divisors (see below), whose sum is σ = 37836383616432. Its totient is φ = 8408085248088.

The previous prime is 21020213120161. The next prime is 21020213120239. The reversal of 21020213120230 is 3202131202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21020213120198 and 21020213120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020213120239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051010656002 + ... + 1051010656021.

It is an arithmetic number, because the mean of its divisors is an integer number (4729547952054).

Almost surely, 2^{21020213120230} is an apocalyptic number.

21020213120230 is a deficient number, since it is larger than the sum of its proper divisors (16816170496202).

21020213120230 is a wasteful number, since it uses less digits than its factorization.

21020213120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102021312030.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21020213120230 its reverse (3202131202012), we get a palindrome (24222344322242).

The spelling of 21020213120230 in words is "twenty-one trillion, twenty billion, two hundred thirteen million, one hundred twenty thousand, two hundred thirty".