123100320000 has 360 divisors, whose sum is σ = 467900673856. Its totient is φ = 28136448000.

The previous prime is 123100319887. The next prime is 123100320001. The reversal of 123100320000 is 23001321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (123100320001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3341682 + ... + 3378318.

Almost surely, 2^123100320000 is an apocalyptic number.

123100320000 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 123100320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233950336928).

123100320000 is an abundant number, since it is smaller than the sum of its proper divisors (344800353856).

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

123100320000 is an frugal number, since it uses more digits than its factorization.

123100320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36683 (or 36654 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 123100320000 its reverse (23001321), we get a palindrome (123123321321).

The spelling of 123100320000 in words is "one hundred twenty-three billion, one hundred million, three hundred twenty thousand".