1313131382569 has 4 divisors (see below), whose sum is σ = 1318916102544. Its totient is φ = 1307346662596.

The previous prime is 1313131382441. The next prime is 1313131382603. The reversal of 1313131382569 is 9652831313131.

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 1313131382569 - 2⁷ = 1313131382441 is a prime.

It is a super-2 number, since 2×1313131382569² (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 (1313131382369) 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, 2892359647 + ... + 2892360100.

It is an arithmetic number, because the mean of its divisors is an integer number (329729025636).

Almost surely, 2^{1313131382569} is an apocalyptic number.

It is an amenable number.

1313131382569 is a deficient number, since it is larger than the sum of its proper divisors (5784719975).

1313131382569 is an equidigital number, since it uses as much as digits as its factorization.

1313131382569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784719974.

The product of its digits is 349920, while the sum is 46.

The spelling of 1313131382569 in words is "one trillion, three hundred thirteen billion, one hundred thirty-one million, three hundred eighty-two thousand, five hundred sixty-nine".