11101011161 has 2 divisors, whose sum is σ = 11101011162. Its totient is φ = 11101011160.

The previous prime is 11101011149. The next prime is 11101011217. The reversal of 11101011161 is 16111010111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10903327561 + 197683600 = 104419^2 + 14060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101011161 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101011461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550505580 + 5550505581.

It is an arithmetic number, because the mean of its divisors is an integer number (5550505581).

Almost surely, 2^11101011161 is an apocalyptic number.

It is an amenable number.

11101011161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101011161 is an equidigital number, since it uses as much as digits as its factorization.

11101011161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 11101011161 its reverse (16111010111), we get a palindrome (27212021272).

The spelling of 11101011161 in words is "eleven billion, one hundred one million, eleven thousand, one hundred sixty-one".