12321040444 has 6 divisors (see below), whose sum is σ = 21561820784. Its totient is φ = 6160520220.

The previous prime is 12321040379. The next prime is 12321040469. The reversal of 12321040444 is 44404012321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1540130052 + ... + 1540130059.

Almost surely, 2^12321040444 is an apocalyptic number.

It is an amenable number.

12321040444 is a deficient number, since it is larger than the sum of its proper divisors (9240780340).

12321040444 is a wasteful number, since it uses less digits than its factorization.

12321040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080260115 (or 3080260113 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12321040444 its reverse (44404012321), we get a palindrome (56725052765).

The spelling of 12321040444 in words is "twelve billion, three hundred twenty-one million, forty thousand, four hundred forty-four".