21230332130 has 32 divisors (see below), whose sum is σ = 43680124800. Its totient is φ = 7277921280.

The previous prime is 21230332129. The next prime is 21230332141. The reversal of 21230332130 is 3123303212.

It is a super-2 number, since 2×21230332130² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 587321 + ... + 622419.

It is an arithmetic number, because the mean of its divisors is an integer number (1365003900).

Almost surely, 2^21230332130 is an apocalyptic number.

21230332130 is an abundant number, since it is smaller than the sum of its proper divisors (22449792670).

21230332130 is a wasteful number, since it uses less digits than its factorization.

21230332130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43754.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21230332130 its reverse (3123303212), we get a palindrome (24353635342).

The spelling of 21230332130 in words is "twenty-one billion, two hundred thirty million, three hundred thirty-two thousand, one hundred thirty".