11040340361 has 2 divisors, whose sum is σ = 11040340362. Its totient is φ = 11040340360.

The previous prime is 11040340319. The next prime is 11040340391. The reversal of 11040340361 is 16304304011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5721409600 + 5318930761 = 75640^2 + 72931^2 .

It is a cyclic number.

It is not a de Polignac number, because 11040340361 - 2¹⁰ = 11040339337 is a prime.

It is a super-2 number, since 2×11040340361² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11040340391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5520170180 + 5520170181.

It is an arithmetic number, because the mean of its divisors is an integer number (5520170181).

Almost surely, 2^11040340361 is an apocalyptic number.

It is an amenable number.

11040340361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11040340361 is an equidigital number, since it uses as much as digits as its factorization.

11040340361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11040340361 its reverse (16304304011), we get a palindrome (27344644372).

The spelling of 11040340361 in words is "eleven billion, forty million, three hundred forty thousand, three hundred sixty-one".