21023310230 has 32 divisors (see below), whose sum is σ = 41420973888. Its totient is φ = 7635196800.

The previous prime is 21023310227. The next prime is 21023310251. The reversal of 21023310230 is 3201332012.

It is a junction number, because it is equal to n+sod(n) for n = 21023310199 and 21023310208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1317626 + ... + 1333485.

It is an arithmetic number, because the mean of its divisors is an integer number (1294405434).

Almost surely, 2^21023310230 is an apocalyptic number.

21023310230 is a deficient number, since it is larger than the sum of its proper divisors (20397663658).

21023310230 is a wasteful number, since it uses less digits than its factorization.

21023310230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651192.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21023310230 its reverse (3201332012), we get a palindrome (24224642242).

The spelling of 21023310230 in words is "twenty-one billion, twenty-three million, three hundred ten thousand, two hundred thirty".