441143111 has 4 divisors (see below), whose sum is σ = 441342552. Its totient is φ = 440943672.

The previous prime is 441143089. The next prime is 441143117. The reversal of 441143111 is 111341144.

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 441143111 - 2¹⁰ = 441142087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441143117) 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, 96365 + ... + 100838.

It is an arithmetic number, because the mean of its divisors is an integer number (110335638).

Almost surely, 2^441143111 is an apocalyptic number.

441143111 is a deficient number, since it is larger than the sum of its proper divisors (199441).

441143111 is a wasteful number, since it uses less digits than its factorization.

441143111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199440.

The product of its digits is 192, while the sum is 20.

The square root of 441143111 is about 21003.4071283685. The cubic root of 441143111 is about 761.2485887541.

Adding to 441143111 its reverse (111341144), we get a palindrome (552484255).

The spelling of 441143111 in words is "four hundred forty-one million, one hundred forty-three thousand, one hundred eleven".