1131312333313 has 4 divisors (see below), whose sum is σ = 1131326943300. Its totient is φ = 1131297723328.

The previous prime is 1131312333289. The next prime is 1131312333329. The reversal of 1131312333313 is 3133332131311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66075730704 + 1065236602609 = 257052^2 + 1032103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131312333313 - 2³⁷ = 993873379841 is a prime.

It is a super-2 number, since 2×1131312333313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131312333013) 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, 7188220 + ... + 7343917.

It is an arithmetic number, because the mean of its divisors is an integer number (282831735825).

Almost surely, 2^{1131312333313} is an apocalyptic number.

It is an amenable number.

1131312333313 is a deficient number, since it is larger than the sum of its proper divisors (14609987).

1131312333313 is an equidigital number, since it uses as much as digits as its factorization.

1131312333313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14609986.

The product of its digits is 4374, while the sum is 28.

Adding to 1131312333313 its reverse (3133332131311), we get a palindrome (4264644464624).

The spelling of 1131312333313 in words is "one trillion, one hundred thirty-one billion, three hundred twelve million, three hundred thirty-three thousand, three hundred thirteen".