1313413422565 has 8 divisors (see below), whose sum is σ = 1586673934200. Its totient is φ = 1043678853312.

The previous prime is 1313413422527. The next prime is 1313413422661. The reversal of 1313413422565 is 5652243143131.

It can be written as a sum of positive squares in 4 ways, for example, as 91667856289 + 1221745566276 = 302767^2 + 1105326^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313413422565 - 2⁹ = 1313413422053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881484774 + ... + 881486263.

It is an arithmetic number, because the mean of its divisors is an integer number (198334241775).

Almost surely, 2^{1313413422565} is an apocalyptic number.

It is an amenable number.

1313413422565 is a deficient number, since it is larger than the sum of its proper divisors (273260511635).

1313413422565 is a wasteful number, since it uses less digits than its factorization.

1313413422565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762971191.

The product of its digits is 259200, while the sum is 40.

Adding to 1313413422565 its reverse (5652243143131), we get a palindrome (6965656565696).

The spelling of 1313413422565 in words is "one trillion, three hundred thirteen billion, four hundred thirteen million, four hundred twenty-two thousand, five hundred sixty-five".