123122223030020 has 192 divisors, whose sum is σ = 292014006681600. Its totient is φ = 43371466744320.

The previous prime is 123122223029941. The next prime is 123122223030211. The reversal of 123122223030020 is 20030322221321.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277561805 + ... + 278005035.

It is an arithmetic number, because the mean of its divisors is an integer number (1520906284800).

Almost surely, 2^{123122223030020} is an apocalyptic number.

123122223030020 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 123122223030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146007003340800).

123122223030020 is an abundant number, since it is smaller than the sum of its proper divisors (168891783651580).

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

123122223030020 is a wasteful number, since it uses less digits than its factorization.

123122223030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444178 (or 444176 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123122223030020 its reverse (20030322221321), we get a palindrome (143152545251341).

The spelling of 123122223030020 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, two hundred twenty-three million, thirty thousand, twenty".