1312313103 has 8 divisors (see below), whose sum is σ = 1944167600. Its totient is φ = 874875384.

The previous prime is 1312313063. The next prime is 1312313129. The reversal of 1312313103 is 3013132131.

It is a happy number.

It is not a de Polignac number, because 1312313103 - 2¹⁷ = 1312182031 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 (1312313143) 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, 24302068 + ... + 24302121.

It is an arithmetic number, because the mean of its divisors is an integer number (243020950).

Almost surely, 2^1312313103 is an apocalyptic number.

1312313103 is a deficient number, since it is larger than the sum of its proper divisors (631854497).

1312313103 is an equidigital number, since it uses as much as digits as its factorization.

1312313103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48604198 (or 48604192 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1312313103 is about 36225.8623499842. The cubic root of 1312313103 is about 1094.8278130454.

Adding to 1312313103 its reverse (3013132131), we get a palindrome (4325445234).

The spelling of 1312313103 in words is "one billion, three hundred twelve million, three hundred thirteen thousand, one hundred three".