123021422442 has 96 divisors (see below), whose sum is σ = 280623522816. Its totient is φ = 38895667200.

The previous prime is 123021422401. The next prime is 123021422453. The reversal of 123021422442 is 244224120321.

It is a happy number.

123021422442 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 214 + 2 + 2 + 442 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44684938 + ... + 44687690.

It is an arithmetic number, because the mean of its divisors is an integer number (2923161696).

Almost surely, 2^123021422442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123021422442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140311761408).

123021422442 is an abundant number, since it is smaller than the sum of its proper divisors (157602100374).

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

123021422442 is a wasteful number, since it uses less digits than its factorization.

123021422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4353 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 123021422442 its reverse (244224120321), we get a palindrome (367245542763).

The spelling of 123021422442 in words is "one hundred twenty-three billion, twenty-one million, four hundred twenty-two thousand, four hundred forty-two".