21014312230 has 16 divisors (see below), whose sum is σ = 37827581904. Its totient is φ = 8405320480.

The previous prime is 21014312203. The next prime is 21014312239. The reversal of 21014312230 is 3221341012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21014312198 and 21014312207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014312239) 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 7 ways as a sum of consecutive naturals, for example, 256500 + ... + 328360.

It is an arithmetic number, because the mean of its divisors is an integer number (2364223869).

Almost surely, 2^21014312230 is an apocalyptic number.

21014312230 is a deficient number, since it is larger than the sum of its proper divisors (16813269674).

21014312230 is a wasteful number, since it uses less digits than its factorization.

21014312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101111.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21014312230 its reverse (3221341012), we get a palindrome (24235653242).

The spelling of 21014312230 in words is "twenty-one billion, fourteen million, three hundred twelve thousand, two hundred thirty".