123313320220 has 24 divisors (see below), whose sum is σ = 259942614624. Its totient is φ = 49137777216.

The previous prime is 123313320211. The next prime is 123313320233. The reversal of 123313320220 is 22023313321.

123313320220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123313320191 and 123313320200.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11716539 + ... + 11727058.

It is an arithmetic number, because the mean of its divisors is an integer number (10830942276).

Almost surely, 2^123313320220 is an apocalyptic number.

123313320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313320220 is an abundant number, since it is smaller than the sum of its proper divisors (136629294404).

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

123313320220 is a wasteful number, since it uses less digits than its factorization.

123313320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23443869 (or 23443867 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123313320220 its reverse (22023313321), we get a palindrome (145336633541).

The spelling of 123313320220 in words is "one hundred twenty-three billion, three hundred thirteen million, three hundred twenty thousand, two hundred twenty".