11170200161 has 2 divisors, whose sum is σ = 11170200162. Its totient is φ = 11170200160.

The previous prime is 11170200143. The next prime is 11170200179. The reversal of 11170200161 is 16100207111.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (11170200143) and next prime (11170200179).

It can be written as a sum of positive squares in only one way, i.e., 9173808400 + 1996391761 = 95780^2 + 44681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11170200161 is a prime.

It is a super-4 number, since 4×11170200161⁴ (a number of 41 digits) contains 4444 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 (11170200101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585100080 + 5585100081.

It is an arithmetic number, because the mean of its divisors is an integer number (5585100081).

Almost surely, 2^11170200161 is an apocalyptic number.

It is an amenable number.

11170200161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11170200161 is an equidigital number, since it uses as much as digits as its factorization.

11170200161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 11170200161 its reverse (16100207111), we get a palindrome (27270407272).

The spelling of 11170200161 in words is "eleven billion, one hundred seventy million, two hundred thousand, one hundred sixty-one".