4121312042 has 8 divisors (see below), whose sum is σ = 6183736356. Its totient is φ = 2060066592.

The previous prime is 4121312009. The next prime is 4121312047. The reversal of 4121312042 is 2402131214.

It can be written as a sum of positive squares in 2 ways, for example, as 3697734481 + 423577561 = 60809^2 + 20581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4121312047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285923 + ... + 299990.

Almost surely, 2^4121312042 is an apocalyptic number.

4121312042 is a deficient number, since it is larger than the sum of its proper divisors (2062424314).

4121312042 is a wasteful number, since it uses less digits than its factorization.

4121312042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589432.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4121312042 is about 64197.4457591577. The cubic root of 4121312042 is about 1603.2890729187.

Adding to 4121312042 its reverse (2402131214), we get a palindrome (6523443256).

The spelling of 4121312042 in words is "four billion, one hundred twenty-one million, three hundred twelve thousand, forty-two".