1311253134326 has 16 divisors (see below), whose sum is σ = 2008941751296. Its totient is φ = 641608849896.

The previous prime is 1311253134299. The next prime is 1311253134383. The reversal of 1311253134326 is 6234313521131.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153155 + ... + 1626641.

It is an arithmetic number, because the mean of its divisors is an integer number (125558859456).

Almost surely, 2^{1311253134326} is an apocalyptic number.

1311253134326 is a deficient number, since it is larger than the sum of its proper divisors (697688616970).

1311253134326 is a wasteful number, since it uses less digits than its factorization.

1311253134326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483003.

The product of its digits is 38880, while the sum is 35.

Adding to 1311253134326 its reverse (6234313521131), we get a palindrome (7545566655457).

The spelling of 1311253134326 in words is "one trillion, three hundred eleven billion, two hundred fifty-three million, one hundred thirty-four thousand, three hundred twenty-six".