1313212774733 has 4 divisors (see below), whose sum is σ = 1313773739388. Its totient is φ = 1312651810080.

The previous prime is 1313212774721. The next prime is 1313212774747. The reversal of 1313212774733 is 3374772123131.

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 882964674244 + 430248100489 = 939662^2 + 655933^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313212774733 - 2⁴ = 1313212774717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313212774633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280478816 + ... + 280483497.

It is an arithmetic number, because the mean of its divisors is an integer number (328443434847).

Almost surely, 2^{1313212774733} is an apocalyptic number.

It is an amenable number.

1313212774733 is a deficient number, since it is larger than the sum of its proper divisors (560964655).

1313212774733 is an equidigital number, since it uses as much as digits as its factorization.

1313212774733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560964654.

The product of its digits is 444528, while the sum is 44.

Adding to 1313212774733 its reverse (3374772123131), we get a palindrome (4687984897864).

The spelling of 1313212774733 in words is "one trillion, three hundred thirteen billion, two hundred twelve million, seven hundred seventy-four thousand, seven hundred thirty-three".