21310425230 has 8 divisors (see below), whose sum is σ = 38358765432. Its totient is φ = 8524170088.

The previous prime is 21310425217. The next prime is 21310425239. The reversal of 21310425230 is 3252401312.

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

It is a super-3 number, since 3×21310425230³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21310425196 and 21310425205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310425239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065521252 + ... + 1065521271.

It is an arithmetic number, because the mean of its divisors is an integer number (4794845679).

Almost surely, 2^21310425230 is an apocalyptic number.

21310425230 is a deficient number, since it is larger than the sum of its proper divisors (17048340202).

21310425230 is a wasteful number, since it uses less digits than its factorization.

21310425230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131042530.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21310425230 its reverse (3252401312), we get a palindrome (24562826542).

The spelling of 21310425230 in words is "twenty-one billion, three hundred ten million, four hundred twenty-five thousand, two hundred thirty".