1313566205241 has 4 divisors (see below), whose sum is σ = 1751421606992. Its totient is φ = 875710803492.

The previous prime is 1313566205239. The next prime is 1313566205261. The reversal of 1313566205241 is 1425026653131.

It is a happy number.

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 not a de Polignac number, because 1313566205241 - 2¹ = 1313566205239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313566205241.

It is not an unprimeable number, because it can be changed into a prime (1313566205261) 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, 218927700871 + ... + 218927700876.

It is an arithmetic number, because the mean of its divisors is an integer number (437855401748).

Almost surely, 2^{1313566205241} is an apocalyptic number.

It is an amenable number.

1313566205241 is a deficient number, since it is larger than the sum of its proper divisors (437855401751).

1313566205241 is an equidigital number, since it uses as much as digits as its factorization.

1313566205241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437855401750.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 1313566205241 in words is "one trillion, three hundred thirteen billion, five hundred sixty-six million, two hundred five thousand, two hundred forty-one".