12042174242 has 12 divisors (see below), whose sum is σ = 21012365430. Its totient is φ = 5160931776.

The previous prime is 12042174241. The next prime is 12042174257. The reversal of 12042174242 is 24247124021.

It can be written as a sum of positive squares in only one way, i.e., 11256997801 + 785176441 = 106099^2 + 28021^2 .

It is not an unprimeable number, because it can be changed into a prime (12042174241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61439567 + ... + 61439762.

Almost surely, 2^12042174242 is an apocalyptic number.

12042174242 is a deficient number, since it is larger than the sum of its proper divisors (8970191188).

12042174242 is a wasteful number, since it uses less digits than its factorization.

12042174242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122879345 (or 122879338 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

Adding to 12042174242 its reverse (24247124021), we get a palindrome (36289298263).

The spelling of 12042174242 in words is "twelve billion, forty-two million, one hundred seventy-four thousand, two hundred forty-two".