21231330230 has 16 divisors (see below), whose sum is σ = 41690612304. Its totient is φ = 7720483680.

The previous prime is 21231330217. The next prime is 21231330259. The reversal of 21231330230 is 3203313212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96505937 + ... + 96506156.

It is an arithmetic number, because the mean of its divisors is an integer number (2605663269).

Almost surely, 2^21231330230 is an apocalyptic number.

21231330230 is a deficient number, since it is larger than the sum of its proper divisors (20459282074).

21231330230 is a wasteful number, since it uses less digits than its factorization.

21231330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193012111.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21231330230 its reverse (3203313212), we get a palindrome (24434643442).

The spelling of 21231330230 in words is "twenty-one billion, two hundred thirty-one million, three hundred thirty thousand, two hundred thirty".