1310220313 has 8 divisors (see below), whose sum is σ = 1343945736. Its totient is φ = 1276579200.

The previous prime is 1310220299. The next prime is 1310220343. The reversal of 1310220313 is 3130220131.

It can be written as a sum of positive squares in 4 ways, for example, as 140375104 + 1169845209 = 11848^2 + 34203^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310220313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310220343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11023 + ... + 52363.

It is an arithmetic number, because the mean of its divisors is an integer number (167993217).

Almost surely, 2^1310220313 is an apocalyptic number.

It is an amenable number.

1310220313 is a deficient number, since it is larger than the sum of its proper divisors (33725423).

1310220313 is an equidigital number, since it uses as much as digits as its factorization.

1310220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42155.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1310220313 is about 36196.9655219882. The cubic root of 1310220313 is about 1094.2455171109.

Adding to 1310220313 its reverse (3130220131), we get a palindrome (4440440444).

The spelling of 1310220313 in words is "one billion, three hundred ten million, two hundred twenty thousand, three hundred thirteen".