21323003032 has 16 divisors (see below), whose sum is σ = 42332432760. Its totient is φ = 10034354304.

The previous prime is 21323003021. The next prime is 21323003057. The reversal of 21323003032 is 23030032312.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 78393258 + ... + 78393529.

Almost surely, 2^21323003032 is an apocalyptic number.

It is an amenable number.

21323003032 is a deficient number, since it is larger than the sum of its proper divisors (21009429728).

21323003032 is a wasteful number, since it uses less digits than its factorization.

21323003032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156786810 (or 156786806 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21323003032 its reverse (23030032312), we get a palindrome (44353035344).

The spelling of 21323003032 in words is "twenty-one billion, three hundred twenty-three million, three thousand, thirty-two".