123542258342 has 4 divisors (see below), whose sum is σ = 185313387516. Its totient is φ = 61771129170.

The previous prime is 123542258341. The next prime is 123542258363. The reversal of 123542258342 is 243852245321.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123542258342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542258341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30885564584 + ... + 30885564587.

It is an arithmetic number, because the mean of its divisors is an integer number (46328346879).

Almost surely, 2^123542258342 is an apocalyptic number.

123542258342 is a deficient number, since it is larger than the sum of its proper divisors (61771129174).

123542258342 is an equidigital number, since it uses as much as digits as its factorization.

123542258342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61771129173.

The product of its digits is 460800, while the sum is 41.

The spelling of 123542258342 in words is "one hundred twenty-three billion, five hundred forty-two million, two hundred fifty-eight thousand, three hundred forty-two".