1311543523135 has 12 divisors (see below), whose sum is σ = 1626259383864. Its totient is φ = 1015388530320.

The previous prime is 1311543523127. The next prime is 1311543523201. The reversal of 1311543523135 is 5313253451131.

It is not a de Polignac number, because 1311543523135 - 2³ = 1311543523127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311543523094 and 1311543523103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136472149 + ... + 136481758.

It is an arithmetic number, because the mean of its divisors is an integer number (135521615322).

Almost surely, 2^{1311543523135} is an apocalyptic number.

1311543523135 is a deficient number, since it is larger than the sum of its proper divisors (314715860729).

1311543523135 is an equidigital number, since it uses as much as digits as its factorization.

1311543523135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272953974 (or 272953943 counting only the distinct ones).

The product of its digits is 81000, while the sum is 37.

Adding to 1311543523135 its reverse (5313253451131), we get a palindrome (6624796974266).

The spelling of 1311543523135 in words is "one trillion, three hundred eleven billion, five hundred forty-three million, five hundred twenty-three thousand, one hundred thirty-five".