1311135343 has 8 divisors (see below), whose sum is σ = 1498798080. Its totient is φ = 1123562040.

The previous prime is 1311135283. The next prime is 1311135349. The reversal of 1311135343 is 3435311131.

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 1311135343 - 2⁹ = 1311134831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311135349) 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 7 ways as a sum of consecutive naturals, for example, 12738 + ... + 52768.

It is an arithmetic number, because the mean of its divisors is an integer number (187349760).

Almost surely, 2^1311135343 is an apocalyptic number.

1311135343 is a deficient number, since it is larger than the sum of its proper divisors (187662737).

1311135343 is an equidigital number, since it uses as much as digits as its factorization.

1311135343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44717.

The product of its digits is 1620, while the sum is 25.

The square root of 1311135343 is about 36209.6029113825. The cubic root of 1311135343 is about 1094.5001904326.

Adding to 1311135343 its reverse (3435311131), we get a palindrome (4746446474).

The spelling of 1311135343 in words is "one billion, three hundred eleven million, one hundred thirty-five thousand, three hundred forty-three".