21230010230 has 48 divisors (see below), whose sum is σ = 45234936432. Its totient is φ = 7126152000.

The previous prime is 21230010223. The next prime is 21230010233. The reversal of 21230010230 is 3201003212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230010233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659096 + ... + 690555.

It is an arithmetic number, because the mean of its divisors is an integer number (942394509).

Almost surely, 2^21230010230 is an apocalyptic number.

21230010230 is an abundant number, since it is smaller than the sum of its proper divisors (24004926202).

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

21230010230 is a wasteful number, since it uses less digits than its factorization.

21230010230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349693 (or 1349682 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21230010230 its reverse (3201003212), we get a palindrome (24431013442).

The spelling of 21230010230 in words is "twenty-one billion, two hundred thirty million, ten thousand, two hundred thirty".