123231330020 has 24 divisors (see below), whose sum is σ = 259375300800. Its totient is φ = 49180244832.

The previous prime is 123231329989. The next prime is 123231330023. The reversal of 123231330020 is 20033132321.

123231330020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123231329974 and 123231330001.

It is not an unprimeable number, because it can be changed into a prime (123231330023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7008950 + ... + 7026509.

It is an arithmetic number, because the mean of its divisors is an integer number (10807304200).

Almost surely, 2^123231330020 is an apocalyptic number.

123231330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123231330020 is an abundant number, since it is smaller than the sum of its proper divisors (136143970780).

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

123231330020 is a wasteful number, since it uses less digits than its factorization.

123231330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14035907 (or 14035905 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123231330020 its reverse (20033132321), we get a palindrome (143264462341).

The spelling of 123231330020 in words is "one hundred twenty-three billion, two hundred thirty-one million, three hundred thirty thousand, twenty".