123330042 has 24 divisors (see below), whose sum is σ = 291507840. Its totient is φ = 37372680.

The previous prime is 123330029. The next prime is 123330043. The reversal of 123330042 is 240033321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123329997 and 123330024.

It is not an unprimeable number, because it can be changed into a prime (123330043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311242 + ... + 311637.

It is an arithmetic number, because the mean of its divisors is an integer number (12146160).

Almost surely, 2^123330042 is an apocalyptic number.

123330042 is an abundant number, since it is smaller than the sum of its proper divisors (168177798).

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

123330042 is a wasteful number, since it uses less digits than its factorization.

123330042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622898 (or 622895 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 123330042 is about 11105.4059808726. The cubic root of 123330042 is about 497.7633994874.

Adding to 123330042 its reverse (240033321), we get a palindrome (363363363).

The spelling of 123330042 in words is "one hundred twenty-three million, three hundred thirty thousand, forty-two".