1313565313506 has 8 divisors (see below), whose sum is σ = 2627130627024. Its totient is φ = 437855104500.

The previous prime is 1313565313483. The next prime is 1313565313517. The reversal of 1313565313506 is 6053135653131.

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

1313565313506 is an admirable number.

It is a super-2 number, since 2×1313565313506² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109463776120 + ... + 109463776131.

It is an arithmetic number, because the mean of its divisors is an integer number (328391328378).

Almost surely, 2^{1313565313506} is an apocalyptic number.

1313565313506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313565313506 is a wasteful number, since it uses less digits than its factorization.

1313565313506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218927552256.

The product of its (nonzero) digits is 364500, while the sum is 42.

The spelling of 1313565313506 in words is "one trillion, three hundred thirteen billion, five hundred sixty-five million, three hundred thirteen thousand, five hundred six".