12320321322 has 24 divisors (see below), whose sum is σ = 25256312928. Its totient is φ = 4006605280.

The previous prime is 12320321303. The next prime is 12320321327. The reversal of 12320321322 is 22312302321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12320321327) 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 11 ways as a sum of consecutive naturals, for example, 600678 + ... + 620849.

It is an arithmetic number, because the mean of its divisors is an integer number (1052346372).

Almost surely, 2^12320321322 is an apocalyptic number.

12320321322 is an abundant number, since it is smaller than the sum of its proper divisors (12935991606).

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

12320321322 is a wasteful number, since it uses less digits than its factorization.

12320321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221614 (or 1221573 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12320321322 its reverse (22312302321), we get a palindrome (34632623643).

The spelling of 12320321322 in words is "twelve billion, three hundred twenty million, three hundred twenty-one thousand, three hundred twenty-two".