21231200321332 has 48 divisors (see below), whose sum is σ = 38520487293120. Its totient is φ = 10226967027200.

The previous prime is 21231200321281. The next prime is 21231200321341. The reversal of 21231200321332 is 23312300213212.

It is a junction number, because it is equal to n+sod(n) for n = 21231200321297 and 21231200321306.

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, 383684907 + ... + 383740237.

It is an arithmetic number, because the mean of its divisors is an integer number (802510151940).

Almost surely, 2^{21231200321332} is an apocalyptic number.

It is an amenable number.

21231200321332 is a deficient number, since it is larger than the sum of its proper divisors (17289286971788).

21231200321332 is a wasteful number, since it uses less digits than its factorization.

21231200321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62592 (or 62590 counting only the distinct ones).

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

Adding to 21231200321332 its reverse (23312300213212), we get a palindrome (44543500534544).

The spelling of 21231200321332 in words is "twenty-one trillion, two hundred thirty-one billion, two hundred million, three hundred twenty-one thousand, three hundred thirty-two".