1313320105 has 4 divisors (see below), whose sum is σ = 1575984132. Its totient is φ = 1050656080.

The previous prime is 1313320093. The next prime is 1313320123. The reversal of 1313320105 is 5010233131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5010233131 = 42017 ⋅119243.

It can be written as a sum of positive squares in 2 ways, for example, as 851414041 + 461906064 = 29179^2 + 21492^2 .

It is not a de Polignac number, because 1313320105 - 2⁷ = 1313319977 is a prime.

It is a super-2 number, since 2×1313320105² = 3449619396394422050, which contains 22 as substring.

It is a Duffinian number.

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, 131332006 + ... + 131332015.

It is an arithmetic number, because the mean of its divisors is an integer number (393996033).

Almost surely, 2^1313320105 is an apocalyptic number.

It is an amenable number.

1313320105 is a deficient number, since it is larger than the sum of its proper divisors (262664027).

1313320105 is an equidigital number, since it uses as much as digits as its factorization.

1313320105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262664026.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1313320105 is about 36239.7586222646. The cubic root of 1313320105 is about 1095.1077797484.

Adding to 1313320105 its reverse (5010233131), we get a palindrome (6323553236).

The spelling of 1313320105 in words is "one billion, three hundred thirteen million, three hundred twenty thousand, one hundred five".