444431043211111 has 12 divisors (see below), whose sum is σ = 489672736673400. Its totient is φ = 403063953224240.

The previous prime is 444431043211061. The next prime is 444431043211117. The reversal of 444431043211111 is 111112340134444.

It is not a de Polignac number, because 444431043211111 - 2²¹ = 444431041113959 is a prime.

It is a super-2 number, since 2×444431043211111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444431043211117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4382984896 + ... + 4383086293.

It is an arithmetic number, because the mean of its divisors is an integer number (40806061389450).

Almost surely, 2^{444431043211111} is an apocalyptic number.

444431043211111 is a deficient number, since it is larger than the sum of its proper divisors (45241693462289).

444431043211111 is a wasteful number, since it uses less digits than its factorization.

444431043211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766071630 (or 8766071619 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

Adding to 444431043211111 its reverse (111112340134444), we get a palindrome (555543383345555).

The spelling of 444431043211111 in words is "four hundred forty-four trillion, four hundred thirty-one billion, forty-three million, two hundred eleven thousand, one hundred eleven".