21331120310332 has 24 divisors (see below), whose sum is σ = 44038441932800. Its totient is φ = 8847008423280.

The previous prime is 21331120310267. The next prime is 21331120310341. The reversal of 21331120310332 is 23301302113312.

It is a junction number, because it is equal to n+sod(n) for n = 21331120310297 and 21331120310306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12287510832 + ... + 12287512567.

Almost surely, 2^{21331120310332} is an apocalyptic number.

It is an amenable number.

21331120310332 is an abundant number, since it is smaller than the sum of its proper divisors (22707321622468).

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

21331120310332 is a wasteful number, since it uses less digits than its factorization.

21331120310332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24575023441 (or 24575023439 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21331120310332 its reverse (23301302113312), we get a palindrome (44632422423644).

The spelling of 21331120310332 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred twenty million, three hundred ten thousand, three hundred thirty-two".