123032130331242 has 128 divisors (see below), whose sum is σ = 278261270396928. Its totient is φ = 35927953459200.

The previous prime is 123032130331213. The next prime is 123032130331249. The reversal of 123032130331242 is 242133031230321.

It is not an unprimeable number, because it can be changed into a prime (123032130331249) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 524949868 + ... + 525184184.

It is an arithmetic number, because the mean of its divisors is an integer number (2173916174976).

Almost surely, 2^{123032130331242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123032130331242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139130635198464).

123032130331242 is an abundant number, since it is smaller than the sum of its proper divisors (155229140065686).

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

123032130331242 is a wasteful number, since it uses less digits than its factorization.

123032130331242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235444.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 123032130331242 its reverse (242133031230321), we get a palindrome (365165161561563).

The spelling of 123032130331242 in words is "one hundred twenty-three trillion, thirty-two billion, one hundred thirty million, three hundred thirty-one thousand, two hundred forty-two".