1312343 has 2 divisors, whose sum is σ = 1312344. Its totient is φ = 1312342.

The previous prime is 1312331. The next prime is 1312351. The reversal of 1312343 is 3432131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312343 - 2¹² = 1308247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656171 + 656172.

It is an arithmetic number, because the mean of its divisors is an integer number (656172).

2^1312343 is an apocalyptic number.

1312343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312343 is an equidigital number, since it uses as much as digits as its factorization.

1312343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 17.

The square root of 1312343 is about 1145.5754012722. The cubic root of 1312343 is about 109.4836127072.

Adding to 1312343 its reverse (3432131), we get a palindrome (4744474).

The spelling of 1312343 in words is "one million, three hundred twelve thousand, three hundred forty-three".