1310320103 has 4 divisors (see below), whose sum is σ = 1310496120. Its totient is φ = 1310144088.

The previous prime is 1310320093. The next prime is 1310320153. The reversal of 1310320103 is 3010230131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3010230131 = 29 ⋅103801039.

It is a cyclic number.

It is not a de Polignac number, because 1310320103 - 2¹⁰ = 1310319079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310320153) 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, 76325 + ... + 91902.

It is an arithmetic number, because the mean of its divisors is an integer number (327624030).

Almost surely, 2^1310320103 is an apocalyptic number.

1310320103 is a deficient number, since it is larger than the sum of its proper divisors (176017).

1310320103 is an equidigital number, since it uses as much as digits as its factorization.

1310320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176016.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1310320103 is about 36198.3439262075. The cubic root of 1310320103 is about 1094.2732966598.

Adding to 1310320103 its reverse (3010230131), we get a palindrome (4320550234).

The spelling of 1310320103 in words is "one billion, three hundred ten million, three hundred twenty thousand, one hundred three".