441001111 has 4 divisors (see below), whose sum is σ = 443961000. Its totient is φ = 438041224.

The previous prime is 441001109. The next prime is 441001117. The reversal of 441001111 is 111100144.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 441001111 - 2¹ = 441001109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441001091 and 441001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479721 + ... + 1480018.

It is an arithmetic number, because the mean of its divisors is an integer number (110990250).

Almost surely, 2^441001111 is an apocalyptic number.

441001111 is a deficient number, since it is larger than the sum of its proper divisors (2959889).

441001111 is a wasteful number, since it uses less digits than its factorization.

441001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959888.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 441001111 is about 21000.0264523643. The cubic root of 441001111 is about 761.1669002970.

Adding to 441001111 its reverse (111100144), we get a palindrome (552101255).

The spelling of 441001111 in words is "four hundred forty-one million, one thousand, one hundred eleven".