1313323305405 has 8 divisors (see below), whose sum is σ = 2101317288672. Its totient is φ = 700439096208.

The previous prime is 1313323305401. The next prime is 1313323305431. The reversal of 1313323305405 is 5045033233131.

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

It is not a de Polignac number, because 1313323305405 - 2² = 1313323305401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313323305401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43777443499 + ... + 43777443528.

It is an arithmetic number, because the mean of its divisors is an integer number (262664661084).

Almost surely, 2^{1313323305405} is an apocalyptic number.

1313323305405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313323305405 is a deficient number, since it is larger than the sum of its proper divisors (787993983267).

1313323305405 is an equidigital number, since it uses as much as digits as its factorization.

1313323305405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87554887035.

The product of its (nonzero) digits is 48600, while the sum is 33.

Adding to 1313323305405 its reverse (5045033233131), we get a palindrome (6358356538536).

The spelling of 1313323305405 in words is "one trillion, three hundred thirteen billion, three hundred twenty-three million, three hundred five thousand, four hundred five".