1131323133311 has 4 divisors (see below), whose sum is σ = 1292940723792. Its totient is φ = 969705542832.

The previous prime is 1131323133271. The next prime is 1131323133379. The reversal of 1131323133311 is 1133313231311.

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 1131323133311 - 2¹⁰ = 1131323132287 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 (1131323133011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80808795230 + ... + 80808795243.

It is an arithmetic number, because the mean of its divisors is an integer number (323235180948).

Almost surely, 2^{1131323133311} is an apocalyptic number.

1131323133311 is a deficient number, since it is larger than the sum of its proper divisors (161617590481).

1131323133311 is an equidigital number, since it uses as much as digits as its factorization.

1131323133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161617590480.

The product of its digits is 1458, while the sum is 26.

Adding to 1131323133311 its reverse (1133313231311), we get a palindrome (2264636364622).

The spelling of 1131323133311 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-three million, one hundred thirty-three thousand, three hundred eleven".