123354225435500 has 144 divisors (see below), whose sum is σ = 286033799548224. Its totient is φ = 46464839020800.

The previous prime is 123354225435421. The next prime is 123354225435503. The reversal of 123354225435500 is 5534522453321.

It is not an unprimeable number, because it can be changed into a prime (123354225435503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28097384 + ... + 32189616.

It is an arithmetic number, because the mean of its divisors is an integer number (1986345830196).

Almost surely, 2^{123354225435500} is an apocalyptic number.

123354225435500 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 123354225435500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143016899774112).

123354225435500 is an abundant number, since it is smaller than the sum of its proper divisors (162679574112724).

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

123354225435500 is a wasteful number, since it uses less digits than its factorization.

123354225435500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092457 (or 4092426 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 44.

Adding to 123354225435500 its reverse (5534522453321), we get a palindrome (128888747888821).

The spelling of 123354225435500 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, two hundred twenty-five million, four hundred thirty-five thousand, five hundred".