11100002161 has 2 divisors, whose sum is σ = 11100002162. Its totient is φ = 11100002160.

The previous prime is 11100002149. The next prime is 11100002351. The reversal of 11100002161 is 16120000111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10745395600 + 354606561 = 103660^2 + 18831^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100002161 - 2⁵ = 11100002129 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100002131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550001080 + 5550001081.

It is an arithmetic number, because the mean of its divisors is an integer number (5550001081).

Almost surely, 2^11100002161 is an apocalyptic number.

It is an amenable number.

11100002161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100002161 is an equidigital number, since it uses as much as digits as its factorization.

11100002161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11100002161 its reverse (16120000111), we get a palindrome (27220002272).

The spelling of 11100002161 in words is "eleven billion, one hundred million, two thousand, one hundred sixty-one".