123020330220 has 72 divisors (see below), whose sum is σ = 373393041840. Its totient is φ = 32785080960.

The previous prime is 123020330183. The next prime is 123020330227. The reversal of 123020330220 is 22033020321.

It is a happy number.

123020330220 is a `hidden beast` number, since 12 + 302 + 0 + 330 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123020330193 and 123020330202.

It is not an unprimeable number, because it can be changed into a prime (123020330227) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 80350 + ... + 502490.

It is an arithmetic number, because the mean of its divisors is an integer number (5186014470).

Almost surely, 2^123020330220 is an apocalyptic number.

123020330220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123020330220 is an abundant number, since it is smaller than the sum of its proper divisors (250372711620).

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

123020330220 is a wasteful number, since it uses less digits than its factorization.

123020330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423775 (or 423770 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 123020330220 its reverse (22033020321), we get a palindrome (145053350541).

The spelling of 123020330220 in words is "one hundred twenty-three billion, twenty million, three hundred thirty thousand, two hundred twenty".