21323303131132 has 48 divisors (see below), whose sum is σ = 38415613465600. Its totient is φ = 10351967520960.

The previous prime is 21323303131127. The next prime is 21323303131153. The reversal of 21323303131132 is 23113130332312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21323303131132.

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, 94397419 + ... + 94623037.

Almost surely, 2^{21323303131132} is an apocalyptic number.

It is an amenable number.

21323303131132 is a deficient number, since it is larger than the sum of its proper divisors (17092310334468).

21323303131132 is a wasteful number, since it uses less digits than its factorization.

21323303131132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230666 (or 230664 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21323303131132 its reverse (23113130332312), we get a palindrome (44436433463444).

The spelling of 21323303131132 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred three million, one hundred thirty-one thousand, one hundred thirty-two".