123320118600 has 384 divisors, whose sum is σ = 491456044800. Its totient is φ = 28186755840.

The previous prime is 123320118599. The next prime is 123320118653. The reversal of 123320118600 is 6811023321.

It is a happy number.

123320118600 is a `hidden beast` number, since 1 + 2 + 33 + 20 + 1 + 1 + 8 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3041662 + ... + 3081938.

It is an arithmetic number, because the mean of its divisors is an integer number (1279833450).

Almost surely, 2^123320118600 is an apocalyptic number.

123320118600 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 123320118600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245728022400).

123320118600 is an abundant number, since it is smaller than the sum of its proper divisors (368135926200).

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

123320118600 is an equidigital number, since it uses as much as digits as its factorization.

123320118600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40321 (or 40294 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 123320118600 in words is "one hundred twenty-three billion, three hundred twenty million, one hundred eighteen thousand, six hundred".