123122024442 has 96 divisors (see below), whose sum is σ = 291235538880. Its totient is φ = 37439700480.

The previous prime is 123122024419. The next prime is 123122024447. The reversal of 123122024442 is 244420221321.

It is a happy number.

123122024442 is a `hidden beast` number, since 1 + 2 + 3 + 12 + 202 + 4 + 442 = 666.

It is a super-2 number, since 2×123122024442² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123122024447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1687984 + ... + 1759412.

It is an arithmetic number, because the mean of its divisors is an integer number (3033703530).

Almost surely, 2^123122024442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123122024442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145617769440).

123122024442 is an abundant number, since it is smaller than the sum of its proper divisors (168113514438).

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

123122024442 is a wasteful number, since it uses less digits than its factorization.

123122024442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71628 (or 71625 counting only the distinct ones).

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

Adding to 123122024442 its reverse (244420221321), we get a palindrome (367542245763).

The spelling of 123122024442 in words is "one hundred twenty-three billion, one hundred twenty-two million, twenty-four thousand, four hundred forty-two".