1131314081 has 2 divisors, whose sum is σ = 1131314082. Its totient is φ = 1131314080.

The previous prime is 1131314033. The next prime is 1131314117. The reversal of 1131314081 is 1804131311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1126206481 + 5107600 = 33559^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131314081 - 2¹⁴ = 1131297697 is a prime.

It is a super-2 number, since 2×1131314081² = 2559743099737749122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1131314021) 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, 565657040 + 565657041.

It is an arithmetic number, because the mean of its divisors is an integer number (565657041).

Almost surely, 2^1131314081 is an apocalyptic number.

It is an amenable number.

1131314081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131314081 is an equidigital number, since it uses as much as digits as its factorization.

1131314081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1131314081 is about 33635.0127248378. The cubic root of 1131314081 is about 1041.9840334250.

Adding to 1131314081 its reverse (1804131311), we get a palindrome (2935445392).

The spelling of 1131314081 in words is "one billion, one hundred thirty-one million, three hundred fourteen thousand, eighty-one".