12415340520242 has 12 divisors (see below), whose sum is σ = 20469920940798. Its totient is φ = 5643336600000.

The previous prime is 12415340520227. The next prime is 12415340520293. The reversal of 12415340520242 is 24202504351421.

It can be written as a sum of positive squares in only one way, i.e., 9241423680841 + 3173916839401 = 3039971^2 + 1781549^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25651529759 + ... + 25651530242.

Almost surely, 2^{12415340520242} is an apocalyptic number.

12415340520242 is a deficient number, since it is larger than the sum of its proper divisors (8054580420556).

12415340520242 is a wasteful number, since it uses less digits than its factorization.

12415340520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51303060025 (or 51303060014 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 12415340520242 its reverse (24202504351421), we get a palindrome (36617844871663).

The spelling of 12415340520242 in words is "twelve trillion, four hundred fifteen billion, three hundred forty million, five hundred twenty thousand, two hundred forty-two".