123221300320 has 48 divisors (see below), whose sum is σ = 303767301600. Its totient is φ = 47145539584.

The previous prime is 123221300317. The next prime is 123221300333. The reversal of 123221300320 is 23003122321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16738345 + ... + 16745704.

It is an arithmetic number, because the mean of its divisors is an integer number (6328485450).

Almost surely, 2^123221300320 is an apocalyptic number.

123221300320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123221300320 is an abundant number, since it is smaller than the sum of its proper divisors (180546001280).

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

123221300320 is a wasteful number, since it uses less digits than its factorization.

123221300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33484087 (or 33484079 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123221300320 its reverse (23003122321), we get a palindrome (146224422641).

The spelling of 123221300320 in words is "one hundred twenty-three billion, two hundred twenty-one million, three hundred thousand, three hundred twenty".