123204042234 has 192 divisors, whose sum is σ = 353067676416. Its totient is φ = 30125094912.

The previous prime is 123204042191. The next prime is 123204042253. The reversal of 123204042234 is 432240402321.

123204042234 is a `hidden beast` number, since 1 + 2 + 3 + 20 + 404 + 2 + 234 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 123204042198 and 123204042207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1832664 + ... + 1898700.

It is an arithmetic number, because the mean of its divisors is an integer number (1838894148).

Almost surely, 2^123204042234 is an apocalyptic number.

123204042234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123204042234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176533838208).

123204042234 is an abundant number, since it is smaller than the sum of its proper divisors (229863634182).

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

123204042234 is a wasteful number, since it uses less digits than its factorization.

123204042234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66149 (or 66146 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 123204042234 its reverse (432240402321), we get a palindrome (555444444555).

The spelling of 123204042234 in words is "one hundred twenty-three billion, two hundred four million, forty-two thousand, two hundred thirty-four".