123323030020 has 24 divisors (see below), whose sum is σ = 260119246464. Its totient is φ = 49111900896.

The previous prime is 123323030009. The next prime is 123323030057. The reversal of 123323030020 is 20030323321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123323030020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13577292 + ... + 13586371.

It is an arithmetic number, because the mean of its divisors is an integer number (10838301936).

Almost surely, 2^123323030020 is an apocalyptic number.

123323030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123323030020 is an abundant number, since it is smaller than the sum of its proper divisors (136796216444).

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

123323030020 is a wasteful number, since it uses less digits than its factorization.

123323030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27163899 (or 27163897 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 123323030020 its reverse (20030323321), we get a palindrome (143353353341).

The spelling of 123323030020 in words is "one hundred twenty-three billion, three hundred twenty-three million, thirty thousand, twenty".