21265460230 has 16 divisors (see below), whose sum is σ = 43746089760. Its totient is φ = 7291014912.

The previous prime is 21265460207. The next prime is 21265460287. The reversal of 21265460230 is 3206456212.

It is a junction number, because it is equal to n+sod(n) for n = 21265460192 and 21265460201.

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, 151896075 + ... + 151896214.

It is an arithmetic number, because the mean of its divisors is an integer number (2734130610).

Almost surely, 2^21265460230 is an apocalyptic number.

21265460230 is an abundant number, since it is smaller than the sum of its proper divisors (22480629530).

21265460230 is a wasteful number, since it uses less digits than its factorization.

21265460230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303792303.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 21265460230 in words is "twenty-one billion, two hundred sixty-five million, four hundred sixty thousand, two hundred thirty".