123043352256 has 168 divisors, whose sum is σ = 385410602304. Its totient is φ = 37221219840.

The previous prime is 123043352227. The next prime is 123043352291. The reversal of 123043352256 is 652253340321.

123043352256 is a `hidden beast` number, since 12 + 3 + 0 + 43 + 352 + 256 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123043352256.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3702691 + ... + 3735773.

It is an arithmetic number, because the mean of its divisors is an integer number (2294110728).

Almost surely, 2^123043352256 is an apocalyptic number.

123043352256 is a gapful number since it is divisible by the number (16) 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 123043352256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192705301152).

123043352256 is an abundant number, since it is smaller than the sum of its proper divisors (262367250048).

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

123043352256 is a wasteful number, since it uses less digits than its factorization.

123043352256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33699 (or 33686 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 123043352256 its reverse (652253340321), we get a palindrome (775296692577).

The spelling of 123043352256 in words is "one hundred twenty-three billion, forty-three million, three hundred fifty-two thousand, two hundred fifty-six".