4431112313 has 4 divisors (see below), whose sum is σ = 4431932148. Its totient is φ = 4430292480.

The previous prime is 4431112307. The next prime is 4431112327. The reversal of 4431112313 is 3132111344.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1595762809 + 2835349504 = 39947^2 + 53248^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431112313 - 2⁶ = 4431112249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431112393) 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, 401756 + ... + 412637.

It is an arithmetic number, because the mean of its divisors is an integer number (1107983037).

Almost surely, 2^4431112313 is an apocalyptic number.

It is an amenable number.

4431112313 is a deficient number, since it is larger than the sum of its proper divisors (819835).

4431112313 is an equidigital number, since it uses as much as digits as its factorization.

4431112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819834.

The product of its digits is 864, while the sum is 23.

The square root of 4431112313 is about 66566.6005816731. The cubic root of 4431112313 is about 1642.4957431198.

Adding to 4431112313 its reverse (3132111344), we get a palindrome (7563223657).

The spelling of 4431112313 in words is "four billion, four hundred thirty-one million, one hundred twelve thousand, three hundred thirteen".