1131311233311 has 8 divisors (see below), whose sum is σ = 1723902831744. Its totient is φ = 646463561880.

The previous prime is 1131311233271. The next prime is 1131311233313. The reversal of 1131311233311 is 1133321131311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131311233311 - 2²⁶ = 1131244124447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131311233313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26935981725 + ... + 26935981766.

It is an arithmetic number, because the mean of its divisors is an integer number (215487853968).

Almost surely, 2^{1131311233311} is an apocalyptic number.

1131311233311 is a deficient number, since it is larger than the sum of its proper divisors (592591598433).

1131311233311 is an equidigital number, since it uses as much as digits as its factorization.

1131311233311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53871963501.

The product of its digits is 486, while the sum is 24.

Adding to 1131311233311 its reverse (1133321131311), we get a palindrome (2264632364622).

The spelling of 1131311233311 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, two hundred thirty-three thousand, three hundred eleven".