21323132332 has 6 divisors (see below), whose sum is σ = 37315481588. Its totient is φ = 10661566164.

The previous prime is 21323132321. The next prime is 21323132371. The reversal of 21323132332 is 23323132312.

It is a junction number, because it is equal to n+sod(n) for n = 21323132297 and 21323132306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2665391538 + ... + 2665391545.

Almost surely, 2^21323132332 is an apocalyptic number.

It is an amenable number.

21323132332 is a deficient number, since it is larger than the sum of its proper divisors (15992349256).

21323132332 is a wasteful number, since it uses less digits than its factorization.

21323132332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330783087 (or 5330783085 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 21323132332 its reverse (23323132312), we get a palindrome (44646264644).

The spelling of 21323132332 in words is "twenty-one billion, three hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty-two".