123304320233220 has 192 divisors, whose sum is σ = 394898371338240. Its totient is φ = 28160671921152.

The previous prime is 123304320233209. The next prime is 123304320233243. The reversal of 123304320233220 is 22332023403321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 63 ways as a sum of consecutive naturals, for example, 2910914401 + ... + 2910956759.

It is an arithmetic number, because the mean of its divisors is an integer number (2056762350720).

Almost surely, 2^{123304320233220} is an apocalyptic number.

123304320233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123304320233220 is an abundant number, since it is smaller than the sum of its proper divisors (271594051105020).

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

123304320233220 is a wasteful number, since it uses less digits than its factorization.

123304320233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47914 (or 47912 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 123304320233220 its reverse (22332023403321), we get a palindrome (145636343636541).

The spelling of 123304320233220 in words is "one hundred twenty-three trillion, three hundred four billion, three hundred twenty million, two hundred thirty-three thousand, two hundred twenty".