1311444323 has 8 divisors (see below), whose sum is σ = 1512801792. Its totient is φ = 1113588936.

The previous prime is 1311444301. The next prime is 1311444331. The reversal of 1311444323 is 3234441131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311444323 - 2¹⁸ = 1311182179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311444292 and 1311444301.

It is not an unprimeable number, because it can be changed into a prime (1311444023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874715 + ... + 876212.

It is an arithmetic number, because the mean of its divisors is an integer number (189100224).

Almost surely, 2^1311444323 is an apocalyptic number.

1311444323 is a deficient number, since it is larger than the sum of its proper divisors (201357469).

1311444323 is a wasteful number, since it uses less digits than its factorization.

1311444323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751041.

The product of its digits is 3456, while the sum is 26.

The square root of 1311444323 is about 36213.8692078049. The cubic root of 1311444323 is about 1094.5861597185.

Adding to 1311444323 its reverse (3234441131), we get a palindrome (4545885454).

The spelling of 1311444323 in words is "one billion, three hundred eleven million, four hundred forty-four thousand, three hundred twenty-three".