1311401303 has 2 divisors, whose sum is σ = 1311401304. Its totient is φ = 1311401302.

The previous prime is 1311401279. The next prime is 1311401317. The reversal of 1311401303 is 3031041131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311401303 - 2⁶ = 1311401239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311401393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655700651 + 655700652.

It is an arithmetic number, because the mean of its divisors is an integer number (655700652).

Almost surely, 2^1311401303 is an apocalyptic number.

1311401303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311401303 is an equidigital number, since it uses as much as digits as its factorization.

1311401303 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 17.

The square root of 1311401303 is about 36213.2752316053. The cubic root of 1311401303 is about 1094.5741908252.

Adding to 1311401303 its reverse (3031041131), we get a palindrome (4342442434).

The spelling of 1311401303 in words is "one billion, three hundred eleven million, four hundred one thousand, three hundred three".