21320132110032 has 160 divisors (see below), whose sum is σ = 63037920870400. Its totient is φ = 6082494695424.

The previous prime is 21320132109979. The next prime is 21320132110037. The reversal of 21320132110032 is 23001123102312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 21320132109990 and 21320132110008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320132110037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759060693 + ... + 759088779.

It is an arithmetic number, because the mean of its divisors is an integer number (393987005440).

Almost surely, 2^{21320132110032} is an apocalyptic number.

It is an amenable number.

21320132110032 is an abundant number, since it is smaller than the sum of its proper divisors (41717788760368).

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

21320132110032 is a wasteful number, since it uses less digits than its factorization.

21320132110032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31353 (or 31347 counting only the distinct ones).

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

Adding to 21320132110032 its reverse (23001123102312), we get a palindrome (44321255212344).

The spelling of 21320132110032 in words is "twenty-one trillion, three hundred twenty billion, one hundred thirty-two million, one hundred ten thousand, thirty-two".