21103332330132 has 192 divisors, whose sum is σ = 59453808960000. Its totient is φ = 6434635769856.

The previous prime is 21103332330121. The next prime is 21103332330137. The reversal of 21103332330132 is 23103323330112.

21103332330132 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 3 + 3 + 323 + 301 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21103332330096 and 21103332330105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103332330137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1159578369 + ... + 1159596567.

It is an arithmetic number, because the mean of its divisors is an integer number (309655255000).

Almost surely, 2^{21103332330132} 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 21103332330132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29726904480000).

21103332330132 is an abundant number, since it is smaller than the sum of its proper divisors (38350476629868).

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

21103332330132 is a wasteful number, since it uses less digits than its factorization.

21103332330132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25647 (or 25639 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21103332330132 its reverse (23103323330112), we get a palindrome (44206655660244).

The spelling of 21103332330132 in words is "twenty-one trillion, one hundred three billion, three hundred thirty-two million, three hundred thirty thousand, one hundred thirty-two".