123122311242 has 64 divisors (see below), whose sum is σ = 284161167360. Its totient is φ = 34835714496.

The previous prime is 123122311211. The next prime is 123122311253. The reversal of 123122311242 is 242113221321.

123122311242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22642548 + ... + 22647984.

It is an arithmetic number, because the mean of its divisors is an integer number (4440018240).

Almost surely, 2^123122311242 is an apocalyptic number.

123122311242 is an abundant number, since it is smaller than the sum of its proper divisors (161038856118).

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

123122311242 is a wasteful number, since it uses less digits than its factorization.

123122311242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595.

The product of its digits is 1152, while the sum is 24.

Adding to 123122311242 its reverse (242113221321), we get a palindrome (365235532563).

The spelling of 123122311242 in words is "one hundred twenty-three billion, one hundred twenty-two million, three hundred eleven thousand, two hundred forty-two".