1311324423 has 8 divisors (see below), whose sum is σ = 1750867200. Its totient is φ = 872998968.

The previous prime is 1311324419. The next prime is 1311324457. The reversal of 1311324423 is 3244231131.

It is a happy number.

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

It is not a de Polignac number, because 1311324423 - 2² = 1311324419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311324393 and 1311324402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311324493) 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, 301813 + ... + 306126.

It is an arithmetic number, because the mean of its divisors is an integer number (218858400).

Almost surely, 2^1311324423 is an apocalyptic number.

1311324423 is a deficient number, since it is larger than the sum of its proper divisors (439542777).

1311324423 is an equidigital number, since it uses as much as digits as its factorization.

1311324423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608661.

The product of its digits is 1728, while the sum is 24.

The square root of 1311324423 is about 36212.2137268629. The cubic root of 1311324423 is about 1094.5528008540.

Adding to 1311324423 its reverse (3244231131), we get a palindrome (4555555554).

The spelling of 1311324423 in words is "one billion, three hundred eleven million, three hundred twenty-four thousand, four hundred twenty-three".