123354555500 has 96 divisors (see below), whose sum is σ = 294582270528. Its totient is φ = 44751744000.

The previous prime is 123354555487. The next prime is 123354555529. The reversal of 123354555500 is 5555453321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2355602 + ... + 2407398.

It is an arithmetic number, because the mean of its divisors is an integer number (3068565318).

Almost surely, 2^123354555500 is an apocalyptic number.

123354555500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123354555500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147291135264).

123354555500 is an abundant number, since it is smaller than the sum of its proper divisors (171227715028).

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

123354555500 is a wasteful number, since it uses less digits than its factorization.

123354555500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52260 (or 52248 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 123354555500 in words is "one hundred twenty-three billion, three hundred fifty-four million, five hundred fifty-five thousand, five hundred".