11207081 has 2 divisors, whose sum is σ = 11207082. Its totient is φ = 11207080.

The previous prime is 11207057. The next prime is 11207099. The reversal of 11207081 is 18070211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9357481 + 1849600 = 3059^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 11207081 - 2²² = 7012777 is a prime.

It is a super-2 number, since 2×11207081² = 251197329081122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11207051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5603540 + 5603541.

It is an arithmetic number, because the mean of its divisors is an integer number (5603541).

Almost surely, 2^11207081 is an apocalyptic number.

It is an amenable number.

11207081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11207081 is an equidigital number, since it uses as much as digits as its factorization.

11207081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 11207081 is about 3347.6978656982. The cubic root of 11207081 is about 223.7849298900.

Adding to 11207081 its reverse (18070211), we get a palindrome (29277292).

The spelling of 11207081 in words is "eleven million, two hundred seven thousand, eighty-one".