21230054230 has 32 divisors (see below), whose sum is σ = 47643552000. Its totient is φ = 6617159520.

The previous prime is 21230054221. The next prime is 21230054243. The reversal of 21230054230 is 3245003212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13784980 + ... + 13786519.

It is an arithmetic number, because the mean of its divisors is an integer number (1488861000).

Almost surely, 2^21230054230 is an apocalyptic number.

21230054230 is an abundant number, since it is smaller than the sum of its proper divisors (26413497770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230054230 is a wasteful number, since it uses less digits than its factorization.

21230054230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27571524.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 21230054230 its reverse (3245003212), we get a palindrome (24475057442).

The spelling of 21230054230 in words is "twenty-one billion, two hundred thirty million, fifty-four thousand, two hundred thirty".