12402340242 has 32 divisors (see below), whose sum is σ = 26504755200. Its totient is φ = 3855230208.

The previous prime is 12402340241. The next prime is 12402340333. The reversal of 12402340242 is 24204320421.

12402340242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12402340241) 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 15 ways as a sum of consecutive naturals, for example, 546642 + ... + 568877.

It is an arithmetic number, because the mean of its divisors is an integer number (828273600).

Almost surely, 2^12402340242 is an apocalyptic number.

12402340242 is an abundant number, since it is smaller than the sum of its proper divisors (14102414958).

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

12402340242 is a wasteful number, since it uses less digits than its factorization.

12402340242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115650.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12402340242 its reverse (24204320421), we get a palindrome (36606660663).

The spelling of 12402340242 in words is "twelve billion, four hundred two million, three hundred forty thousand, two hundred forty-two".