21031212300332 has 48 divisors (see below), whose sum is σ = 40353486066432. Its totient is φ = 9532340946240.

The previous prime is 21031212300211. The next prime is 21031212300383. The reversal of 21031212300332 is 23300321213012.

It is a junction number, because it is equal to n+sod(n) for n = 21031212300298 and 21031212300307.

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 15 ways as a sum of consecutive naturals, for example, 13868594 + ... + 15310137.

It is an arithmetic number, because the mean of its divisors is an integer number (840697626384).

Almost surely, 2^{21031212300332} is an apocalyptic number.

It is an amenable number.

21031212300332 is a deficient number, since it is larger than the sum of its proper divisors (19322273766100).

21031212300332 is a wasteful number, since it uses less digits than its factorization.

21031212300332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29178998 (or 29178996 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21031212300332 its reverse (23300321213012), we get a palindrome (44331533513344).

The spelling of 21031212300332 in words is "twenty-one trillion, thirty-one billion, two hundred twelve million, three hundred thousand, three hundred thirty-two".