123230232020 has 48 divisors (see below), whose sum is σ = 295892059008. Its totient is φ = 42230436480.

The previous prime is 123230232019. The next prime is 123230232023. The reversal of 123230232020 is 20232032321.

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 = 123230231983 and 123230232001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123230232023) 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 15 ways as a sum of consecutive naturals, for example, 91814 + ... + 504866.

It is an arithmetic number, because the mean of its divisors is an integer number (6164417896).

Almost surely, 2^123230232020 is an apocalyptic number.

123230232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123230232020 is an abundant number, since it is smaller than the sum of its proper divisors (172661826988).

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

123230232020 is a wasteful number, since it uses less digits than its factorization.

123230232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415200 (or 415198 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 123230232020 its reverse (20232032321), we get a palindrome (143462264341).

The spelling of 123230232020 in words is "one hundred twenty-three billion, two hundred thirty million, two hundred thirty-two thousand, twenty".