123300012220 has 144 divisors (see below), whose sum is σ = 330040593792. Its totient is φ = 38261112960.

The previous prime is 123300012203. The next prime is 123300012307. The reversal of 123300012220 is 22210003321.

It is a junction number, because it is equal to n+sod(n) for n = 123300012194 and 123300012203.

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 47 ways as a sum of consecutive naturals, for example, 2421867 + ... + 2472253.

It is an arithmetic number, because the mean of its divisors is an integer number (2291948568).

Almost surely, 2^123300012220 is an apocalyptic number.

123300012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123300012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165020296896).

123300012220 is an abundant number, since it is smaller than the sum of its proper divisors (206740581572).

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

123300012220 is a wasteful number, since it uses less digits than its factorization.

123300012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50648 (or 50639 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 123300012220 its reverse (22210003321), we get a palindrome (145510015541).

The spelling of 123300012220 in words is "one hundred twenty-three billion, three hundred million, twelve thousand, two hundred twenty".