123323442 has 48 divisors (see below), whose sum is σ = 278495616. Its totient is φ = 36352800.

The previous prime is 123323419. The next prime is 123323443. The reversal of 123323442 is 244323321.

It is not an unprimeable number, because it can be changed into a prime (123323443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24567 + ... + 29157.

It is an arithmetic number, because the mean of its divisors is an integer number (5801992).

Almost surely, 2^123323442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123323442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139247808).

123323442 is an abundant number, since it is smaller than the sum of its proper divisors (155172174).

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

123323442 is a wasteful number, since it uses less digits than its factorization.

123323442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655 (or 4644 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 123323442 is about 11105.1088243205. The cubic root of 123323442 is about 497.7545200692.

Adding to 123323442 its reverse (244323321), we get a palindrome (367646763).

The spelling of 123323442 in words is "one hundred twenty-three million, three hundred twenty-three thousand, four hundred forty-two".