4043421121311 has 96 divisors (see below), whose sum is σ = 6877591156800. Its totient is φ = 2256776847360.

The previous prime is 4043421121303. The next prime is 4043421121393. The reversal of 4043421121311 is 1131211243404.

It is a happy number.

4043421121311 is a `hidden beast` number, since 4 + 0 + 4 + 342 + 1 + 1 + 2 + 1 + 311 = 666.

It is not a de Polignac number, because 4043421121311 - 2³ = 4043421121303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043421121711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1782026685 + ... + 1782028953.

It is an arithmetic number, because the mean of its divisors is an integer number (71641574550).

Almost surely, 2^{4043421121311} is an apocalyptic number.

4043421121311 is a deficient number, since it is larger than the sum of its proper divisors (2834170035489).

4043421121311 is a wasteful number, since it uses less digits than its factorization.

4043421121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4918 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 4043421121311 its reverse (1131211243404), we get a palindrome (5174632364715).

The spelling of 4043421121311 in words is "four trillion, forty-three billion, four hundred twenty-one million, one hundred twenty-one thousand, three hundred eleven".