123023323100020 has 24 divisors (see below), whose sum is σ = 295255975440384. Its totient is φ = 42179425062816.

The previous prime is 123023323099993. The next prime is 123023323100021. The reversal of 123023323100020 is 20001323320321.

It is a junction number, because it is equal to n+sod(n) for n = 123023323099964 and 123023323100000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023323100021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439369010932 + ... + 439369011211.

It is an arithmetic number, because the mean of its divisors is an integer number (12302332310016).

Almost surely, 2^{123023323100020} is an apocalyptic number.

123023323100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123023323100020 is an abundant number, since it is smaller than the sum of its proper divisors (172232652340364).

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

123023323100020 is a wasteful number, since it uses less digits than its factorization.

123023323100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878738022159 (or 878738022157 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123023323100020 its reverse (20001323320321), we get a palindrome (143024646420341).

The spelling of 123023323100020 in words is "one hundred twenty-three trillion, twenty-three billion, three hundred twenty-three million, one hundred thousand, twenty".