21332103332 has 12 divisors (see below), whose sum is σ = 37943167836. Its totient is φ = 10491198240.

The previous prime is 21332103313. The next prime is 21332103341. The reversal of 21332103332 is 23330123312.

It can be written as a sum of positive squares in 2 ways, for example, as 10548111616 + 10783991716 = 102704^2 + 103846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21332103298 and 21332103307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43713083 + ... + 43713570.

It is an arithmetic number, because the mean of its divisors is an integer number (3161930653).

Almost surely, 2^21332103332 is an apocalyptic number.

It is an amenable number.

21332103332 is a deficient number, since it is larger than the sum of its proper divisors (16611064504).

21332103332 is a wasteful number, since it uses less digits than its factorization.

21332103332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87426718 (or 87426716 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21332103332 its reverse (23330123312), we get a palindrome (44662226644).

The spelling of 21332103332 in words is "twenty-one billion, three hundred thirty-two million, one hundred three thousand, three hundred thirty-two".