21011020332132 has 24 divisors (see below), whose sum is σ = 49132060572672. Its totient is φ = 6988481092000.

The previous prime is 21011020332119. The next prime is 21011020332191. The reversal of 21011020332132 is 23123302011012.

It is a junction number, because it is equal to n+sod(n) for n = 21011020332099 and 21011020332108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1899038244 + ... + 1899049307.

It is an arithmetic number, because the mean of its divisors is an integer number (2047169190528).

Almost surely, 2^{21011020332132} is an apocalyptic number.

It is an amenable number.

21011020332132 is an abundant number, since it is smaller than the sum of its proper divisors (28121040240540).

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

21011020332132 is a wasteful number, since it uses less digits than its factorization.

21011020332132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798088019 (or 3798088017 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21011020332132 its reverse (23123302011012), we get a palindrome (44134322343144).

The spelling of 21011020332132 in words is "twenty-one trillion, eleven billion, twenty million, three hundred thirty-two thousand, one hundred thirty-two".