123342420342 has 16 divisors (see below), whose sum is σ = 248948005680. Its totient is φ = 40736945952.

The previous prime is 123342420319. The next prime is 123342420401. The reversal of 123342420342 is 243024243321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94297833 + ... + 94299140.

It is an arithmetic number, because the mean of its divisors is an integer number (15559250355).

Almost surely, 2^123342420342 is an apocalyptic number.

123342420342 is an abundant number, since it is smaller than the sum of its proper divisors (125605585338).

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

123342420342 is a wasteful number, since it uses less digits than its factorization.

123342420342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188597087.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 123342420342 its reverse (243024243321), we get a palindrome (366366663663).

The spelling of 123342420342 in words is "one hundred twenty-three billion, three hundred forty-two million, four hundred twenty thousand, three hundred forty-two".