21303021010332 has 48 divisors (see below), whose sum is σ = 50230630338560. Its totient is φ = 7026504734592.

The previous prime is 21303021010321. The next prime is 21303021010351. The reversal of 21303021010332 is 23301012030312.

It is a junction number, because it is equal to n+sod(n) for n = 21303021010299 and 21303021010308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17863513 + ... + 19018704.

Almost surely, 2^{21303021010332} is an apocalyptic number.

It is an amenable number.

21303021010332 is an abundant number, since it is smaller than the sum of its proper divisors (28927609328228).

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

21303021010332 is a wasteful number, since it uses less digits than its factorization.

21303021010332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36882730 (or 36882728 counting only the distinct ones).

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

Adding to 21303021010332 its reverse (23301012030312), we get a palindrome (44604033040644).

The spelling of 21303021010332 in words is "twenty-one trillion, three hundred three billion, twenty-one million, ten thousand, three hundred thirty-two".