1323321134432 has 24 divisors (see below), whose sum is σ = 2842132891752. Its totient is φ = 601509606400.

The previous prime is 1323321134417. The next prime is 1323321134449. The reversal of 1323321134432 is 2344311233231.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1879717169 + ... + 1879717872.

It is an arithmetic number, because the mean of its divisors is an integer number (118422203823).

Almost surely, 2^{1323321134432} is an apocalyptic number.

It is an amenable number.

1323321134432 is an abundant number, since it is smaller than the sum of its proper divisors (1518811757320).

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

1323321134432 is a wasteful number, since it uses less digits than its factorization.

1323321134432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759435062 (or 3759435054 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

Adding to 1323321134432 its reverse (2344311233231), we get a palindrome (3667632367663).

The spelling of 1323321134432 in words is "one trillion, three hundred twenty-three billion, three hundred twenty-one million, one hundred thirty-four thousand, four hundred thirty-two".