123550553210432 has 112 divisors (see below), whose sum is σ = 254596909916160. Its totient is φ = 59416576407552.

The previous prime is 123550553210431. The next prime is 123550553210443. The reversal of 123550553210432 is 234012355055321.

It is a self number, because there is not a number n which added to its sum of digits gives 123550553210432.

It is not an unprimeable number, because it can be changed into a prime (123550553210431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553570113 + ... + 2553618495.

It is an arithmetic number, because the mean of its divisors is an integer number (2273186695680).

Almost surely, 2^{123550553210432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123550553210432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127298454958080).

123550553210432 is an abundant number, since it is smaller than the sum of its proper divisors (131046356705728).

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

123550553210432 is a wasteful number, since it uses less digits than its factorization.

123550553210432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53668 (or 53658 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 123550553210432 in words is "one hundred twenty-three trillion, five hundred fifty billion, five hundred fifty-three million, two hundred ten thousand, four hundred thirty-two".