210021111304 has 16 divisors (see below), whose sum is σ = 394040908800. Its totient is φ = 104943535632.

The previous prime is 210021111283. The next prime is 210021111317. The reversal of 210021111304 is 403111120012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8364184 + ... + 8389255.

It is an arithmetic number, because the mean of its divisors is an integer number (24627556800).

Almost surely, 2^210021111304 is an apocalyptic number.

It is an amenable number.

210021111304 is a deficient number, since it is larger than the sum of its proper divisors (184019797496).

210021111304 is a wasteful number, since it uses less digits than its factorization.

210021111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16755012 (or 16755008 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210021111304 its reverse (403111120012), we get a palindrome (613132231316).

The spelling of 210021111304 in words is "two hundred ten billion, twenty-one million, one hundred eleven thousand, three hundred four".