123133405050 has 72 divisors (see below), whose sum is σ = 331371424800. Its totient is φ = 32780685600.

The previous prime is 123133405049. The next prime is 123133405121. The reversal of 123133405050 is 50504331321.

123133405050 is a `hidden beast` number, since 1 + 2 + 313 + 340 + 5 + 0 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41145 + ... + 497955.

It is an arithmetic number, because the mean of its divisors is an integer number (4602380900).

Almost surely, 2^123133405050 is an apocalyptic number.

123133405050 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 123133405050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165685712400).

123133405050 is an abundant number, since it is smaller than the sum of its proper divisors (208238019750).

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

123133405050 is a wasteful number, since it uses less digits than its factorization.

123133405050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457428 (or 457420 counting only the distinct ones).

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

Adding to 123133405050 its reverse (50504331321), we get a palindrome (173637736371).

The spelling of 123133405050 in words is "one hundred twenty-three billion, one hundred thirty-three million, four hundred five thousand, fifty".