123103324243242 has 144 divisors (see below), whose sum is σ = 312600754383840. Its totient is φ = 34908985710144.

The previous prime is 123103324243241. The next prime is 123103324243301. The reversal of 123103324243242 is 242342423301321.

123103324243242 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 0 + 3 + 324 + 2 + 4 + 324 + 2 = 666.

123103324243242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123103324243197 and 123103324243206.

It is not an unprimeable number, because it can be changed into a prime (123103324243241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81824748 + ... + 83315640.

It is an arithmetic number, because the mean of its divisors is an integer number (2170838572110).

Almost surely, 2^{123103324243242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123103324243242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156300377191920).

123103324243242 is an abundant number, since it is smaller than the sum of its proper divisors (189497430140598).

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

123103324243242 is a wasteful number, since it uses less digits than its factorization.

123103324243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491617 (or 1491607 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 123103324243242 its reverse (242342423301321), we get a palindrome (365445747544563).

The spelling of 123103324243242 in words is "one hundred twenty-three trillion, one hundred three billion, three hundred twenty-four million, two hundred forty-three thousand, two hundred forty-two".