1313219266553 has 4 divisors (see below), whose sum is σ = 1314490535028. Its totient is φ = 1311947998080.

The previous prime is 1313219266529. The next prime is 1313219266559. The reversal of 1313219266553 is 3556629123131.

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 605327568784 + 707891697769 = 778028^2 + 841363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313219266553 - 2²⁰ = 1313218217977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313219266498 and 1313219266507.

It is not an unprimeable number, because it can be changed into a prime (1313219266559) 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, 635632688 + ... + 635634753.

It is an arithmetic number, because the mean of its divisors is an integer number (328622633757).

Almost surely, 2^{1313219266553} is an apocalyptic number.

It is an amenable number.

1313219266553 is a deficient number, since it is larger than the sum of its proper divisors (1271268475).

1313219266553 is a wasteful number, since it uses less digits than its factorization.

1313219266553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271268474.

The product of its digits is 874800, while the sum is 47.

The spelling of 1313219266553 in words is "one trillion, three hundred thirteen billion, two hundred nineteen million, two hundred sixty-six thousand, five hundred fifty-three".