123354544500 has 144 divisors (see below), whose sum is σ = 424519228224. Its totient is φ = 29904120000.

The previous prime is 123354544451. The next prime is 123354544553. The reversal of 123354544500 is 5445453321.

123354544500 is a `hidden beast` number, since 1 + 23 + 3 + 545 + 44 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1196506 + ... + 1295505.

It is an arithmetic number, because the mean of its divisors is an integer number (2948050196).

Almost surely, 2^123354544500 is an apocalyptic number.

123354544500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123354544500 is an abundant number, since it is smaller than the sum of its proper divisors (301164683724).

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

123354544500 is a wasteful number, since it uses less digits than its factorization.

123354544500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492047 (or 2492032 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 123354544500 its reverse (5445453321), we get a palindrome (128799997821).

The spelling of 123354544500 in words is "one hundred twenty-three billion, three hundred fifty-four million, five hundred forty-four thousand, five hundred".