1303243 has 2 divisors, whose sum is σ = 1303244. Its totient is φ = 1303242.

The previous prime is 1303241. The next prime is 1303261. The reversal of 1303243 is 3423031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303243 - 2¹ = 1303241 is a prime.

Together with 1303241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1303241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651621 + 651622.

It is an arithmetic number, because the mean of its divisors is an integer number (651622).

2^1303243 is an apocalyptic number.

1303243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303243 is an equidigital number, since it uses as much as digits as its factorization.

1303243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1303243 is about 1141.5966888529. The cubic root of 1303243 is about 109.2299664614.

Adding to 1303243 its reverse (3423031), we get a palindrome (4726274).

The spelling of 1303243 in words is "one million, three hundred three thousand, two hundred forty-three".