4431321133111 has 4 divisors (see below), whose sum is σ = 4432238405824. Its totient is φ = 4430403860400.

The previous prime is 4431321133103. The next prime is 4431321133117. The reversal of 4431321133111 is 1113311231344.

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 4431321133111 - 2³ = 4431321133103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4431321133111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431321133117) 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, 458629110 + ... + 458638771.

It is an arithmetic number, because the mean of its divisors is an integer number (1108059601456).

Almost surely, 2^{4431321133111} is an apocalyptic number.

4431321133111 is a deficient number, since it is larger than the sum of its proper divisors (917272713).

4431321133111 is an equidigital number, since it uses as much as digits as its factorization.

4431321133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917272712.

The product of its digits is 2592, while the sum is 28.

Adding to 4431321133111 its reverse (1113311231344), we get a palindrome (5544632364455).

The spelling of 4431321133111 in words is "four trillion, four hundred thirty-one billion, three hundred twenty-one million, one hundred thirty-three thousand, one hundred eleven".