1311040303 has 2 divisors, whose sum is σ = 1311040304. Its totient is φ = 1311040302.

The previous prime is 1311040267. The next prime is 1311040333. The reversal of 1311040303 is 3030401131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311040303 - 2⁹ = 1311039791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311040333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655520151 + 655520152.

It is an arithmetic number, because the mean of its divisors is an integer number (655520152).

Almost surely, 2^1311040303 is an apocalyptic number.

1311040303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311040303 is an equidigital number, since it uses as much as digits as its factorization.

1311040303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1311040303 is about 36208.2905285516. The cubic root of 1311040303 is about 1094.4737441896.

Adding to 1311040303 its reverse (3030401131), we get a palindrome (4341441434).

The spelling of 1311040303 in words is "one billion, three hundred eleven million, forty thousand, three hundred three".