123542452342 has 8 divisors (see below), whose sum is σ = 186348951000. Its totient is φ = 61426135344.

The previous prime is 123542452337. The next prime is 123542452361. The reversal of 123542452342 is 243254245321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 172544967 + ... + 172545682.

It is an arithmetic number, because the mean of its divisors is an integer number (23293618875).

Almost surely, 2^123542452342 is an apocalyptic number.

123542452342 is a deficient number, since it is larger than the sum of its proper divisors (62806498658).

123542452342 is a wasteful number, since it uses less digits than its factorization.

123542452342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345090830.

The product of its digits is 230400, while the sum is 37.

Adding to 123542452342 its reverse (243254245321), we get a palindrome (366796697663).

The spelling of 123542452342 in words is "one hundred twenty-three billion, five hundred forty-two million, four hundred fifty-two thousand, three hundred forty-two".