21232331223230 has 64 divisors (see below), whose sum is σ = 41253585120000. Its totient is φ = 7839198302208.

The previous prime is 21232331223211. The next prime is 21232331223253. The reversal of 21232331223230 is 3232213323212.

It is a junction number, because it is equal to n+sod(n) for n = 21232331223193 and 21232331223202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3304175 + ... + 7306314.

It is an arithmetic number, because the mean of its divisors is an integer number (644587267500).

Almost surely, 2^{21232331223230} is an apocalyptic number.

21232331223230 is a deficient number, since it is larger than the sum of its proper divisors (20021253896770).

21232331223230 is a wasteful number, since it uses less digits than its factorization.

21232331223230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610741.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 21232331223230 its reverse (3232213323212), we get a palindrome (24464544546442).

The spelling of 21232331223230 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred thirty-one million, two hundred twenty-three thousand, two hundred thirty".