1310021303 has 2 divisors, whose sum is σ = 1310021304. Its totient is φ = 1310021302.

The previous prime is 1310021233. The next prime is 1310021311. The reversal of 1310021303 is 3031200131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1310021303 - 2¹⁶ = 1309955767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310021333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655010651 + 655010652.

It is an arithmetic number, because the mean of its divisors is an integer number (655010652).

Almost surely, 2^1310021303 is an apocalyptic number.

1310021303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310021303 is an equidigital number, since it uses as much as digits as its factorization.

1310021303 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 14.

The square root of 1310021303 is about 36194.2164302531. The cubic root of 1310021303 is about 1094.1901124778.

Adding to 1310021303 its reverse (3031200131), we get a palindrome (4341221434).

The spelling of 1310021303 in words is "one billion, three hundred ten million, twenty-one thousand, three hundred three".