123243555760 has 160 divisors (see below), whose sum is σ = 314223013440. Its totient is φ = 44676403200.

The previous prime is 123243555739. The next prime is 123243555767. The reversal of 123243555760 is 67555342321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123243555767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41932371 + ... + 41935309.

It is an arithmetic number, because the mean of its divisors is an integer number (1963893834).

Almost surely, 2^123243555760 is an apocalyptic number.

123243555760 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 123243555760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157111506720).

123243555760 is an abundant number, since it is smaller than the sum of its proper divisors (190979457680).

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

123243555760 is a wasteful number, since it uses less digits than its factorization.

123243555760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3681 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 123243555760 in words is "one hundred twenty-three billion, two hundred forty-three million, five hundred fifty-five thousand, seven hundred sixty".