21421141230 has 32 divisors (see below), whose sum is σ = 51738207264. Its totient is φ = 5675918976.

The previous prime is 21421141223. The next prime is 21421141283. The reversal of 21421141230 is 3214112412.

It is a junction number, because it is equal to n+sod(n) for n = 21421141197 and 21421141206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269297 + ... + 2278716.

It is an arithmetic number, because the mean of its divisors is an integer number (1616818977).

Almost surely, 2^21421141230 is an apocalyptic number.

21421141230 is an abundant number, since it is smaller than the sum of its proper divisors (30317066034).

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

21421141230 is a wasteful number, since it uses less digits than its factorization.

21421141230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548180.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21421141230 its reverse (3214112412), we get a palindrome (24635253642).

The spelling of 21421141230 in words is "twenty-one billion, four hundred twenty-one million, one hundred forty-one thousand, two hundred thirty".