21332103132 has 96 divisors (see below), whose sum is σ = 53247172608. Its totient is φ = 6623576064.

The previous prime is 21332103131. The next prime is 21332103139. The reversal of 21332103132 is 23130123312.

It is a junction number, because it is equal to n+sod(n) for n = 21332103099 and 21332103108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332103131) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 14948203 + ... + 14949629.

It is an arithmetic number, because the mean of its divisors is an integer number (554658048).

Almost surely, 2^21332103132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21332103132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26623586304).

21332103132 is an abundant number, since it is smaller than the sum of its proper divisors (31915069476).

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

21332103132 is a wasteful number, since it uses less digits than its factorization.

21332103132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21332103132 its reverse (23130123312), we get a palindrome (44462226444).

The spelling of 21332103132 in words is "twenty-one billion, three hundred thirty-two million, one hundred three thousand, one hundred thirty-two".