12321232044 has 48 divisors (see below), whose sum is σ = 31622376576. Its totient is φ = 3733701840.

The previous prime is 12321232037. The next prime is 12321232051. The reversal of 12321232044 is 44023212321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12321232037) and next prime (12321232051).

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, 369742 + ... + 401685.

It is an arithmetic number, because the mean of its divisors is an integer number (658799512).

Almost surely, 2^12321232044 is an apocalyptic number.

It is an amenable number.

12321232044 is an abundant number, since it is smaller than the sum of its proper divisors (19301144532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321232044 is a wasteful number, since it uses less digits than its factorization.

12321232044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771467 (or 771443 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12321232044 its reverse (44023212321), we get a palindrome (56344444365).

The spelling of 12321232044 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-two thousand, forty-four".