404004044111 has 2 divisors, whose sum is σ = 404004044112. Its totient is φ = 404004044110.

The previous prime is 404004044071. The next prime is 404004044113. The reversal of 404004044111 is 111440400404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404004044111 - 2³⁰ = 402930302287 is a prime.

Together with 404004044113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404004044113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202002022055 + 202002022056.

It is an arithmetic number, because the mean of its divisors is an integer number (202002022056).

Almost surely, 2^404004044111 is an apocalyptic number.

404004044111 is a deficient number, since it is larger than the sum of its proper divisors (1).

404004044111 is an equidigital number, since it uses as much as digits as its factorization.

404004044111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 404004044111 its reverse (111440400404), we get a palindrome (515444444515).

The spelling of 404004044111 in words is "four hundred four billion, four million, forty-four thousand, one hundred eleven".