1131311312333 has 4 divisors (see below), whose sum is σ = 1141884315360. Its totient is φ = 1120738309308.

The previous prime is 1131311312323. The next prime is 1131311312347. The reversal of 1131311312333 is 3332131131311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131311312333 - 2²⁰ = 1131310263757 is a prime.

It is a super-2 number, since 2×1131311312333² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131311312323) 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, 5286501353 + ... + 5286501566.

It is an arithmetic number, because the mean of its divisors is an integer number (285471078840).

Almost surely, 2^{1131311312333} is an apocalyptic number.

It is an amenable number.

1131311312333 is a deficient number, since it is larger than the sum of its proper divisors (10573003027).

1131311312333 is a wasteful number, since it uses less digits than its factorization.

1131311312333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10573003026.

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

Adding to 1131311312333 its reverse (3332131131311), we get a palindrome (4463442443644).

The spelling of 1131311312333 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, three hundred twelve thousand, three hundred thirty-three".