12533021332432 has 20 divisors (see below), whose sum is σ = 24459975031716. Its totient is φ = 6220769711360.

The previous prime is 12533021332417. The next prime is 12533021332451. The reversal of 12533021332432 is 23423312033521.

It can be written as a sum of positive squares in 2 ways, for example, as 2702814912576 + 9830206419856 = 1644024^2 + 3135316^2 .

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, 2858807419 + ... + 2858811802.

Almost surely, 2^{12533021332432} is an apocalyptic number.

It is an amenable number.

12533021332432 is a deficient number, since it is larger than the sum of its proper divisors (11926953699284).

12533021332432 is a wasteful number, since it uses less digits than its factorization.

12533021332432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717619366 (or 5717619360 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 12533021332432 its reverse (23423312033521), we get a palindrome (35956333365953).

The spelling of 12533021332432 in words is "twelve trillion, five hundred thirty-three billion, twenty-one million, three hundred thirty-two thousand, four hundred thirty-two".