1311130211 has 2 divisors, whose sum is σ = 1311130212. Its totient is φ = 1311130210.

The previous prime is 1311130201. The next prime is 1311130217. The reversal of 1311130211 is 1120311131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311130211 - 2¹⁰ = 1311129187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1311130217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655565105 + 655565106.

It is an arithmetic number, because the mean of its divisors is an integer number (655565106).

Almost surely, 2^1311130211 is an apocalyptic number.

1311130211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311130211 is an equidigital number, since it uses as much as digits as its factorization.

1311130211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1311130211 is about 36209.5320461339. The cubic root of 1311130211 is about 1094.4987624126.

Adding to 1311130211 its reverse (1120311131), we get a palindrome (2431441342).

The spelling of 1311130211 in words is "one billion, three hundred eleven million, one hundred thirty thousand, two hundred eleven".