1321322232330 has 48 divisors (see below), whose sum is σ = 3584804670720. Its totient is φ = 337032916704.

The previous prime is 1321322232289. The next prime is 1321322232331. The reversal of 1321322232330 is 332322231231.

1321322232330 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 322 + 2 + 3 + 2 + 330 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1321322232294 and 1321322232303.

It is not an unprimeable number, because it can be changed into a prime (1321322232331) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 319157890 + ... + 319162029.

It is an arithmetic number, because the mean of its divisors is an integer number (74683430640).

Almost surely, 2^{1321322232330} is an apocalyptic number.

1321322232330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321322232330 is an abundant number, since it is smaller than the sum of its proper divisors (2263482438390).

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

1321322232330 is a wasteful number, since it uses less digits than its factorization.

1321322232330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638319955 (or 638319952 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 1321322232330 its reverse (332322231231), we get a palindrome (1653644463561).

The spelling of 1321322232330 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-two million, two hundred thirty-two thousand, three hundred thirty".