123351223050 has 288 divisors, whose sum is σ = 376235383680. Its totient is φ = 28699507200.

The previous prime is 123351223001. The next prime is 123351223129. The reversal of 123351223050 is 50322153321.

It is a happy number.

123351223050 is a `hidden beast` number, since 1 + 2 + 3 + 351 + 2 + 2 + 305 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 24831667 + ... + 24836633.

It is an arithmetic number, because the mean of its divisors is an integer number (1306372860).

Almost surely, 2^123351223050 is an apocalyptic number.

123351223050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123351223050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188117691840).

123351223050 is an abundant number, since it is smaller than the sum of its proper divisors (252884160630).

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

123351223050 is a wasteful number, since it uses less digits than its factorization.

123351223050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198 (or 5190 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 123351223050 its reverse (50322153321), we get a palindrome (173673376371).

The spelling of 123351223050 in words is "one hundred twenty-three billion, three hundred fifty-one million, two hundred twenty-three thousand, fifty".