21321110203132 has 6 divisors (see below), whose sum is σ = 37311942855488. Its totient is φ = 10660555101564.

The previous prime is 21321110203109. The next prime is 21321110203147. The reversal of 21321110203132 is 23130201112312.

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 as a sum of consecutive naturals, namely, 2665138775388 + ... + 2665138775395.

Almost surely, 2^{21321110203132} is an apocalyptic number.

It is an amenable number.

21321110203132 is a deficient number, since it is larger than the sum of its proper divisors (15990832652356).

21321110203132 is a wasteful number, since it uses less digits than its factorization.

21321110203132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330277550787 (or 5330277550785 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21321110203132 its reverse (23130201112312), we get a palindrome (44451311315444).

The spelling of 21321110203132 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred ten million, two hundred three thousand, one hundred thirty-two".