1311301323 has 48 divisors (see below), whose sum is σ = 2078706240. Its totient is φ = 793900800.

The previous prime is 1311301301. The next prime is 1311301331. The reversal of 1311301323 is 3231031131.

It is a happy number.

1311301323 is a `hidden beast` number, since 1 + 311 + 30 + 1 + 323 = 666.

It is not a de Polignac number, because 1311301323 - 2⁵ = 1311301291 is a prime.

It is a super-2 number, since 2×1311301323² = 3439022319403100658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311301296 and 1311301305.

It is not an unprimeable number, because it can be changed into a prime (1311302323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 364393 + ... + 367973.

It is an arithmetic number, because the mean of its divisors is an integer number (43306380).

Almost surely, 2^1311301323 is an apocalyptic number.

1311301323 is a deficient number, since it is larger than the sum of its proper divisors (767404917).

1311301323 is a wasteful number, since it uses less digits than its factorization.

1311301323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700 (or 3697 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1311301323 is about 36211.8947722982. The cubic root of 1311301323 is about 1094.5463736832.

Adding to 1311301323 its reverse (3231031131), we get a palindrome (4542332454).

The spelling of 1311301323 in words is "one billion, three hundred eleven million, three hundred one thousand, three hundred twenty-three".