123433123242 has 128 divisors (see below), whose sum is σ = 295959121920. Its totient is φ = 33827040000.

The previous prime is 123433123241. The next prime is 123433123271. The reversal of 123433123242 is 242321334321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123433123241) 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, 8872492 + ... + 8886392.

It is an arithmetic number, because the mean of its divisors is an integer number (2312180640).

Almost surely, 2^123433123242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123433123242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147979560960).

123433123242 is an abundant number, since it is smaller than the sum of its proper divisors (172525998678).

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

123433123242 is a wasteful number, since it uses less digits than its factorization.

123433123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14140.

The product of its digits is 20736, while the sum is 30.

Adding to 123433123242 its reverse (242321334321), we get a palindrome (365754457563).

The spelling of 123433123242 in words is "one hundred twenty-three billion, four hundred thirty-three million, one hundred twenty-three thousand, two hundred forty-two".