42321142242 has 12 divisors (see below), whose sum is σ = 91695808230. Its totient is φ = 14107047408.

The previous prime is 42321142217. The next prime is 42321142243. The reversal of 42321142242 is 24224112324.

It is a happy number.

42321142242 is a `hidden beast` number, since 4 + 23 + 211 + 422 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37608457041 + 4712685201 = 193929^2 + 68649^2 .

It is not an unprimeable number, because it can be changed into a prime (42321142243) 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 5 ways as a sum of consecutive naturals, for example, 1175587267 + ... + 1175587302.

Almost surely, 2^42321142242 is an apocalyptic number.

42321142242 is an abundant number, since it is smaller than the sum of its proper divisors (49374665988).

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

42321142242 is a wasteful number, since it uses less digits than its factorization.

42321142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351174577 (or 2351174574 counting only the distinct ones).

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

Adding to 42321142242 its reverse (24224112324), we get a palindrome (66545254566).

The spelling of 42321142242 in words is "forty-two billion, three hundred twenty-one million, one hundred forty-two thousand, two hundred forty-two".