21021441230 has 8 divisors (see below), whose sum is σ = 37838594232. Its totient is φ = 8408576488.

The previous prime is 21021441209. The next prime is 21021441269. The reversal of 21021441230 is 3214412012.

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

It is a congruent number.

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, 1051072052 + ... + 1051072071.

It is an arithmetic number, because the mean of its divisors is an integer number (4729824279).

Almost surely, 2^21021441230 is an apocalyptic number.

21021441230 is a deficient number, since it is larger than the sum of its proper divisors (16817153002).

21021441230 is a wasteful number, since it uses less digits than its factorization.

21021441230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102144130.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21021441230 its reverse (3214412012), we get a palindrome (24235853242).

The spelling of 21021441230 in words is "twenty-one billion, twenty-one million, four hundred forty-one thousand, two hundred thirty".