1311231524126 has 16 divisors (see below), whose sum is σ = 2040323221440. Its totient is φ = 631528609920.

The previous prime is 1311231524093. The next prime is 1311231524179. The reversal of 1311231524126 is 6214251321131.

It is a junction number, because it is equal to n+sod(n) for n = 1311231524092 and 1311231524101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101200031 + ... + 101212986.

It is an arithmetic number, because the mean of its divisors is an integer number (127520201340).

Almost surely, 2^{1311231524126} is an apocalyptic number.

1311231524126 is a deficient number, since it is larger than the sum of its proper divisors (729091697314).

1311231524126 is a wasteful number, since it uses less digits than its factorization.

1311231524126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202413139.

The product of its digits is 8640, while the sum is 32.

Adding to 1311231524126 its reverse (6214251321131), we get a palindrome (7525482845257).

The spelling of 1311231524126 in words is "one trillion, three hundred eleven billion, two hundred thirty-one million, five hundred twenty-four thousand, one hundred twenty-six".