21030230230 has 8 divisors (see below), whose sum is σ = 37854414432. Its totient is φ = 8412092088.

The previous prime is 21030230197. The next prime is 21030230231. The reversal of 21030230230 is 3203203012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030230231) 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, 1051511502 + ... + 1051511521.

It is an arithmetic number, because the mean of its divisors is an integer number (4731801804).

Almost surely, 2^21030230230 is an apocalyptic number.

21030230230 is a deficient number, since it is larger than the sum of its proper divisors (16824184202).

21030230230 is a wasteful number, since it uses less digits than its factorization.

21030230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103023030.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21030230230 its reverse (3203203012), we get a palindrome (24233433242).

The spelling of 21030230230 in words is "twenty-one billion, thirty million, two hundred thirty thousand, two hundred thirty".