123005342 has 16 divisors (see below), whose sum is σ = 187164672. Its totient is φ = 60623640.

The previous prime is 123005293. The next prime is 123005347. The reversal of 123005342 is 243500321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123005347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39917 + ... + 42887.

It is an arithmetic number, because the mean of its divisors is an integer number (11697792).

Almost surely, 2^123005342 is an apocalyptic number.

123005342 is a deficient number, since it is larger than the sum of its proper divisors (64159330).

123005342 is a wasteful number, since it uses less digits than its factorization.

123005342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 123005342 is about 11090.7773397540. Note that the first 3 decimals coincide. The cubic root of 123005342 is about 497.3261828920.

Adding to 123005342 its reverse (243500321), we get a palindrome (366505663).

The spelling of 123005342 in words is "one hundred twenty-three million, five thousand, three hundred forty-two".