1311005363 has 2 divisors, whose sum is σ = 1311005364. Its totient is φ = 1311005362.

The previous prime is 1311005317. The next prime is 1311005389. The reversal of 1311005363 is 3635001131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311005363 - 2¹² = 1311001267 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311005393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655502681 + 655502682.

It is an arithmetic number, because the mean of its divisors is an integer number (655502682).

Almost surely, 2^1311005363 is an apocalyptic number.

1311005363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311005363 is an equidigital number, since it uses as much as digits as its factorization.

1311005363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 1311005363 is about 36207.8080391509. The cubic root of 1311005363 is about 1094.4640213122.

Adding to 1311005363 its reverse (3635001131), we get a palindrome (4946006494).

The spelling of 1311005363 in words is "one billion, three hundred eleven million, five thousand, three hundred sixty-three".