1311131434311 has 80 divisors (see below), whose sum is σ = 2036347967808. Its totient is φ = 840120422400.

The previous prime is 1311131434289. The next prime is 1311131434331. The reversal of 1311131434311 is 1134341311131.

1311131434311 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 1 + 314 + 34 + 311 = 666.

It is not a de Polignac number, because 1311131434311 - 2¹¹ = 1311131432263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311131434331) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 62660131 + ... + 62681051.

Almost surely, 2^{1311131434311} is an apocalyptic number.

1311131434311 is a deficient number, since it is larger than the sum of its proper divisors (725216533497).

1311131434311 is a wasteful number, since it uses less digits than its factorization.

1311131434311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254 (or 21245 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

Adding to 1311131434311 its reverse (1134341311131), we get a palindrome (2445472745442).

The spelling of 1311131434311 in words is "one trillion, three hundred eleven billion, one hundred thirty-one million, four hundred thirty-four thousand, three hundred eleven".