1311323 has 8 divisors (see below), whose sum is σ = 1486800. Its totient is φ = 1146528.

The previous prime is 1311311. The next prime is 1311341. The reversal of 1311323 is 3231131.

1311323 is nontrivially palindromic in base 3.

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 1311323 - 2⁴ = 1311307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311298 and 1311307.

It is not an unprimeable number, because it can be changed into a prime (1311353) 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, 2408 + ... + 2901.

It is an arithmetic number, because the mean of its divisors is an integer number (185850).

2^1311323 is an apocalyptic number.

1311323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1311323 is a deficient number, since it is larger than the sum of its proper divisors (175477).

1311323 is a wasteful number, since it uses less digits than its factorization.

1311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341.

The product of its digits is 54, while the sum is 14.

The square root of 1311323 is about 1145.1301236104. The cubic root of 1311323 is about 109.4552404931.

Adding to 1311323 its reverse (3231131), we get a palindrome (4542454).

The spelling of 1311323 in words is "one million, three hundred eleven thousand, three hundred twenty-three".