1311213313 has 8 divisors (see below), whose sum is σ = 1380777120. Its totient is φ = 1241704800.

The previous prime is 1311213301. The next prime is 1311213347. The reversal of 1311213313 is 3133121131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311213313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1311214313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40338 + ... + 65188.

It is an arithmetic number, because the mean of its divisors is an integer number (172597140).

Almost surely, 2^1311213313 is an apocalyptic number.

It is an amenable number.

1311213313 is a deficient number, since it is larger than the sum of its proper divisors (69563807).

1311213313 is a wasteful number, since it uses less digits than its factorization.

1311213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27647.

The product of its digits is 162, while the sum is 19.

The square root of 1311213313 is about 36210.6795434717. The cubic root of 1311213313 is about 1094.5218857490.

Adding to 1311213313 its reverse (3133121131), we get a palindrome (4444334444).

The spelling of 1311213313 in words is "one billion, three hundred eleven million, two hundred thirteen thousand, three hundred thirteen".