1310211803 has 2 divisors, whose sum is σ = 1310211804. Its totient is φ = 1310211802.

The previous prime is 1310211797. The next prime is 1310211817. The reversal of 1310211803 is 3081120131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1310211803 - 2⁶ = 1310211739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310211893) 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, 655105901 + 655105902.

It is an arithmetic number, because the mean of its divisors is an integer number (655105902).

Almost surely, 2^1310211803 is an apocalyptic number.

1310211803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310211803 is an equidigital number, since it uses as much as digits as its factorization.

1310211803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1310211803 is about 36196.8479705070. The cubic root of 1310211803 is about 1094.2431480310.

Adding to 1310211803 its reverse (3081120131), we get a palindrome (4391331934).

The spelling of 1310211803 in words is "one billion, three hundred ten million, two hundred eleven thousand, eight hundred three".