1312103303 has 16 divisors (see below), whose sum is σ = 1549178880. Its totient is φ = 1087495200.

The previous prime is 1312103297. The next prime is 1312103323. The reversal of 1312103303 is 3033012131.

It is a cyclic number.

It is not a de Polignac number, because 1312103303 - 2⁸ = 1312103047 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 (1312103323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517148 + ... + 519678.

It is an arithmetic number, because the mean of its divisors is an integer number (96823680).

Almost surely, 2^1312103303 is an apocalyptic number.

1312103303 is a deficient number, since it is larger than the sum of its proper divisors (237075577).

1312103303 is a wasteful number, since it uses less digits than its factorization.

1312103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1312103303 is about 36222.9665129735. The cubic root of 1312103303 is about 1094.7694664216.

Adding to 1312103303 its reverse (3033012131), we get a palindrome (4345115434).

The spelling of 1312103303 in words is "one billion, three hundred twelve million, one hundred three thousand, three hundred three".