1131031313311 has 4 divisors (see below), whose sum is σ = 1142012199952. Its totient is φ = 1120050426672.

The previous prime is 1131031313219. The next prime is 1131031313323. The reversal of 1131031313311 is 1133131301311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131031313311 - 2¹³ = 1131031305119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131031313341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5490443166 + ... + 5490443371.

It is an arithmetic number, because the mean of its divisors is an integer number (285503049988).

Almost surely, 2^{1131031313311} is an apocalyptic number.

1131031313311 is a deficient number, since it is larger than the sum of its proper divisors (10980886641).

1131031313311 is a wasteful number, since it uses less digits than its factorization.

1131031313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980886640.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 1131031313311 its reverse (1133131301311), we get a palindrome (2264162614622).

The spelling of 1131031313311 in words is "one trillion, one hundred thirty-one billion, thirty-one million, three hundred thirteen thousand, three hundred eleven".