1311071053 has 2 divisors, whose sum is σ = 1311071054. Its totient is φ = 1311071052.

The previous prime is 1311071039. The next prime is 1311071101. The reversal of 1311071053 is 3501701131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106094564 + 204976489 = 33258^2 + 14317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311071053 - 2²⁵ = 1277516621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311071033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655535526 + 655535527.

It is an arithmetic number, because the mean of its divisors is an integer number (655535527).

Almost surely, 2^1311071053 is an apocalyptic number.

It is an amenable number.

1311071053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311071053 is an equidigital number, since it uses as much as digits as its factorization.

1311071053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 1311071053 is about 36208.7151525707. The cubic root of 1311071053 is about 1094.4823009580.

Adding to 1311071053 its reverse (3501701131), we get a palindrome (4812772184).

The spelling of 1311071053 in words is "one billion, three hundred eleven million, seventy-one thousand, fifty-three".