123189273780000 has 480 divisors, whose sum is σ = 408779626147200. Its totient is φ = 32469964800000.

The previous prime is 123189273779963. The next prime is 123189273780121. The reversal of 123189273780000 is 87372981321.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3629923032 + ... + 3629956968.

It is an arithmetic number, because the mean of its divisors is an integer number (851624221140).

Almost surely, 2^{123189273780000} is an apocalyptic number.

123189273780000 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 123189273780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204389813073600).

123189273780000 is an abundant number, since it is smaller than the sum of its proper divisors (285590352367200).

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

123189273780000 is a wasteful number, since it uses less digits than its factorization.

123189273780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34670 (or 34647 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 123189273780000 in words is "one hundred twenty-three trillion, one hundred eighty-nine billion, two hundred seventy-three million, seven hundred eighty thousand".