1310320105 has 8 divisors (see below), whose sum is σ = 1574304264. Its totient is φ = 1046976000.

The previous prime is 1310320093. The next prime is 1310320153. The reversal of 1310320105 is 5010230131.

It can be written as a sum of positive squares in 4 ways, for example, as 45522009 + 1264798096 = 6747^2 + 35564^2 .

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

It is not a de Polignac number, because 1310320105 - 2⁷ = 1310319977 is a prime.

It is a super-2 number, since 2×1310320105² = 3433877555134422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155496 + ... + 163705.

It is an arithmetic number, because the mean of its divisors is an integer number (196788033).

Almost surely, 2^1310320105 is an apocalyptic number.

It is an amenable number.

1310320105 is a deficient number, since it is larger than the sum of its proper divisors (263984159).

1310320105 is an equidigital number, since it uses as much as digits as its factorization.

1310320105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320027.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1310320105 is about 36198.3439538330. The cubic root of 1310320105 is about 1094.2732972166.

Adding to 1310320105 its reverse (5010230131), we get a palindrome (6320550236).

The spelling of 1310320105 in words is "one billion, three hundred ten million, three hundred twenty thousand, one hundred five".