4121040440042 has 8 divisors (see below), whose sum is σ = 6181586547300. Its totient is φ = 2060511590944.

The previous prime is 4121040440017. The next prime is 4121040440047. The reversal of 4121040440042 is 2400440401214.

It can be written as a sum of positive squares in 2 ways, for example, as 4078133874721 + 42906565321 = 2019439^2 + 207139^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4121040439993 and 4121040440020.

It is not an unprimeable number, because it can be changed into a prime (4121040440047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3700067 + ... + 4683222.

Almost surely, 2^{4121040440042} is an apocalyptic number.

4121040440042 is a deficient number, since it is larger than the sum of its proper divisors (2060546107258).

4121040440042 is a wasteful number, since it uses less digits than its factorization.

4121040440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8629080.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 4121040440042 its reverse (2400440401214), we get a palindrome (6521480841256).

The spelling of 4121040440042 in words is "four trillion, one hundred twenty-one billion, forty million, four hundred forty thousand, forty-two".