1312041133 has 6 divisors (see below), whose sum is σ = 1420731114. Its totient is φ = 1211114736.

The previous prime is 1312041121. The next prime is 1312041139. The reversal of 1312041133 is 3311402131.

It can be written as a sum of positive squares in 3 ways, for example, as 6086089 + 1305955044 = 2467^2 + 36138^2 .

It is not a de Polignac number, because 1312041133 - 2¹³ = 1312032941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312041133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312041139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3881610 + ... + 3881947.

It is an arithmetic number, because the mean of its divisors is an integer number (236788519).

Almost surely, 2^1312041133 is an apocalyptic number.

1312041133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1312041133 is a deficient number, since it is larger than the sum of its proper divisors (108689981).

1312041133 is an equidigital number, since it uses as much as digits as its factorization.

1312041133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7763583 (or 7763570 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1312041133 is about 36222.1083455947. The cubic root of 1312041133 is about 1094.7521753815.

Adding to 1312041133 its reverse (3311402131), we get a palindrome (4623443264).

The spelling of 1312041133 in words is "one billion, three hundred twelve million, forty-one thousand, one hundred thirty-three".