12321441532 has 24 divisors (see below), whose sum is σ = 21772686320. Its totient is φ = 6100738560.

The previous prime is 12321441511. The next prime is 12321441541. The reversal of 12321441532 is 23514412321.

It is a self number, because there is not a number n which added to its sum of digits gives 12321441532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872407 + ... + 886417.

Almost surely, 2^12321441532 is an apocalyptic number.

It is an amenable number.

12321441532 is a deficient number, since it is larger than the sum of its proper divisors (9451244788).

12321441532 is a wasteful number, since it uses less digits than its factorization.

12321441532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141 (or 16139 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

Adding to 12321441532 its reverse (23514412321), we get a palindrome (35835853853).

The spelling of 12321441532 in words is "twelve billion, three hundred twenty-one million, four hundred forty-one thousand, five hundred thirty-two".