443240421111 has 16 divisors (see below), whose sum is σ = 685202584320. Its totient is φ = 282646065240.

The previous prime is 443240421103. The next prime is 443240421179. The reversal of 443240421111 is 111124042344.

443240421111 is a `hidden beast` number, since 4 + 4 + 32 + 404 + 211 + 11 = 666.

It is not a de Polignac number, because 443240421111 - 2³ = 443240421103 is a prime.

It is a super-2 number, since 2×443240421111² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443240421101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356875725 + ... + 356876966.

It is an arithmetic number, because the mean of its divisors is an integer number (42825161520).

Almost surely, 2^443240421111 is an apocalyptic number.

443240421111 is a deficient number, since it is larger than the sum of its proper divisors (241962163209).

443240421111 is a wasteful number, since it uses less digits than its factorization.

443240421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713752723 (or 713752717 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 443240421111 its reverse (111124042344), we get a palindrome (554364463455).

The spelling of 443240421111 in words is "four hundred forty-three billion, two hundred forty million, four hundred twenty-one thousand, one hundred eleven".