1312303 has 2 divisors, whose sum is σ = 1312304. Its totient is φ = 1312302.

The previous prime is 1312301. The next prime is 1312319. The reversal of 1312303 is 3032131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312303 - 2¹ = 1312301 is a prime.

Together with 1312301, it forms a pair of twin primes.

1312303 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656151 + 656152.

It is an arithmetic number, because the mean of its divisors is an integer number (656152).

2^1312303 is an apocalyptic number.

1312303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312303 is an equidigital number, since it uses as much as digits as its factorization.

1312303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1312303 is about 1145.5579426637. The cubic root of 1312303 is about 109.4825003484.

Adding to 1312303 its reverse (3032131), we get a palindrome (4344434).

The spelling of 1312303 in words is "one million, three hundred twelve thousand, three hundred three".