21331310230 has 8 divisors (see below), whose sum is σ = 38396358432. Its totient is φ = 8532524088.

The previous prime is 21331310213. The next prime is 21331310243. The reversal of 21331310230 is 3201313312.

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

It is a super-2 number, since 2×21331310230² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21331310198 and 21331310207.

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, 1066565502 + ... + 1066565521.

It is an arithmetic number, because the mean of its divisors is an integer number (4799544804).

Almost surely, 2^21331310230 is an apocalyptic number.

21331310230 is a deficient number, since it is larger than the sum of its proper divisors (17065048202).

21331310230 is a wasteful number, since it uses less digits than its factorization.

21331310230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133131030.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21331310230 its reverse (3201313312), we get a palindrome (24532623542).

The spelling of 21331310230 in words is "twenty-one billion, three hundred thirty-one million, three hundred ten thousand, two hundred thirty".