123403242122 has 8 divisors (see below), whose sum is σ = 185136238656. Its totient is φ = 61691162572.

The previous prime is 123403242121. The next prime is 123403242191. The reversal of 123403242122 is 221242304321.

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

It is a junction number, because it is equal to n+sod(n) for n = 123403242091 and 123403242100.

It is not an unprimeable number, because it can be changed into a prime (123403242121) 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 in 3 ways as a sum of consecutive naturals, for example, 5214488 + ... + 5238099.

It is an arithmetic number, because the mean of its divisors is an integer number (23142029832).

Almost surely, 2^123403242122 is an apocalyptic number.

123403242122 is a deficient number, since it is larger than the sum of its proper divisors (61732996534).

123403242122 is a wasteful number, since it uses less digits than its factorization.

123403242122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10458492.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 123403242122 its reverse (221242304321), we get a palindrome (344645546443).

The spelling of 123403242122 in words is "one hundred twenty-three billion, four hundred three million, two hundred forty-two thousand, one hundred twenty-two".