123210123221248 has 144 divisors (see below), whose sum is σ = 289049111455104. Its totient is φ = 51309660487680.

The previous prime is 123210123221161. The next prime is 123210123221249. The reversal of 123210123221248 is 842122321012321.

It is not an unprimeable number, because it can be changed into a prime (123210123221249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49236411 + ... + 51678277.

It is an arithmetic number, because the mean of its divisors is an integer number (2007285496216).

Almost surely, 2^{123210123221248} 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 123210123221248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144524555727552).

123210123221248 is an abundant number, since it is smaller than the sum of its proper divisors (165838988233856).

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

123210123221248 is an equidigital number, since it uses as much as digits as its factorization.

123210123221248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442688 (or 2442674 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

Adding to 123210123221248 its reverse (842122321012321), we get a palindrome (965332444233569).

The spelling of 123210123221248 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred forty-eight".