21321213130132 has 12 divisors (see below), whose sum is σ = 38105997935040. Its totient is φ = 10433785148696.

The previous prime is 21321213130127. The next prime is 21321213130157. The reversal of 21321213130132 is 23103131212312.

It is a junction number, because it is equal to n+sod(n) for n = 21321213130097 and 21321213130106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56705353882 + ... + 56705354257.

It is an arithmetic number, because the mean of its divisors is an integer number (3175499827920).

Almost surely, 2^{21321213130132} is an apocalyptic number.

It is an amenable number.

21321213130132 is a deficient number, since it is larger than the sum of its proper divisors (16784784804908).

21321213130132 is a wasteful number, since it uses less digits than its factorization.

21321213130132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113410708190 (or 113410708188 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21321213130132 its reverse (23103131212312), we get a palindrome (44424344342444).

The spelling of 21321213130132 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirteen million, one hundred thirty thousand, one hundred thirty-two".