1311718326 has 32 divisors (see below), whose sum is σ = 2705529600. Its totient is φ = 423766560.

The previous prime is 1311718277. The next prime is 1311718361. The reversal of 1311718326 is 6238171131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961 + ... + 51228.

It is an arithmetic number, because the mean of its divisors is an integer number (84547800).

Almost surely, 2^1311718326 is an apocalyptic number.

1311718326 is an abundant number, since it is smaller than the sum of its proper divisors (1393811274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311718326 is a wasteful number, since it uses less digits than its factorization.

1311718326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52324.

The product of its digits is 6048, while the sum is 33.

The square root of 1311718326 is about 36217.6521326273. The cubic root of 1311718326 is about 1094.6623858561.

Adding to 1311718326 its reverse (6238171131), we get a palindrome (7549889457).

The spelling of 1311718326 in words is "one billion, three hundred eleven million, seven hundred eighteen thousand, three hundred twenty-six".