123122434342 has 4 divisors (see below), whose sum is σ = 184683651516. Its totient is φ = 61561217170.

The previous prime is 123122434321. The next prime is 123122434367. The reversal of 123122434342 is 243434221321.

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

It is a congruent number.

It is an unprimeable number.

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, 30780608584 + ... + 30780608587.

It is an arithmetic number, because the mean of its divisors is an integer number (46170912879).

Almost surely, 2^123122434342 is an apocalyptic number.

123122434342 is a deficient number, since it is larger than the sum of its proper divisors (61561217174).

123122434342 is an equidigital number, since it uses as much as digits as its factorization.

123122434342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61561217173.

The product of its digits is 27648, while the sum is 31.

Adding to 123122434342 its reverse (243434221321), we get a palindrome (366556655663).

The spelling of 123122434342 in words is "one hundred twenty-three billion, one hundred twenty-two million, four hundred thirty-four thousand, three hundred forty-two".