11011817 has 2 divisors, whose sum is σ = 11011818. Its totient is φ = 11011816.

The previous prime is 11011807. The next prime is 11011837. The reversal of 11011817 is 71811011.

It is an a-pointer prime, because the next prime (11011837) can be obtained adding 11011817 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7027801 + 3984016 = 2651^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011817 - 2⁶ = 11011753 is a prime.

It is a super-2 number, since 2×11011817² = 242520227282978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11011807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505908 + 5505909.

It is an arithmetic number, because the mean of its divisors is an integer number (5505909).

Almost surely, 2^11011817 is an apocalyptic number.

It is an amenable number.

11011817 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011817 is an equidigital number, since it uses as much as digits as its factorization.

11011817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

The square root of 11011817 is about 3318.4057919429. The cubic root of 11011817 is about 222.4776192613.

Adding to 11011817 its reverse (71811011), we get a palindrome (82822828).

The spelling of 11011817 in words is "eleven million, eleven thousand, eight hundred seventeen".