21203211302332 has 6 divisors (see below), whose sum is σ = 37105619779088. Its totient is φ = 10601605651164.

The previous prime is 21203211302323. The next prime is 21203211302353. The reversal of 21203211302332 is 23320311230212.

It is a junction number, because it is equal to n+sod(n) for n = 21203211302297 and 21203211302306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2650401412788 + ... + 2650401412795.

Almost surely, 2^{21203211302332} is an apocalyptic number.

It is an amenable number.

21203211302332 is a deficient number, since it is larger than the sum of its proper divisors (15902408476756).

21203211302332 is a wasteful number, since it uses less digits than its factorization.

21203211302332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300802825587 (or 5300802825585 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21203211302332 its reverse (23320311230212), we get a palindrome (44523522532544).

The spelling of 21203211302332 in words is "twenty-one trillion, two hundred three billion, two hundred eleven million, three hundred two thousand, three hundred thirty-two".