111110011101161 has 2 divisors, whose sum is σ = 111110011101162. Its totient is φ = 111110011101160.

The previous prime is 111110011101049. The next prime is 111110011101169. The reversal of 111110011101161 is 161101110011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100366956025561 + 10743055075600 = 10018331^2 + 3277660^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110011101161 - 2³⁰ = 111108937359337 is a prime.

It is not a weakly prime, because it can be changed into another prime (111110011101169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555005550580 + 55555005550581.

It is an arithmetic number, because the mean of its divisors is an integer number (55555005550581).

Almost surely, 2^{111110011101161} is an apocalyptic number.

It is an amenable number.

111110011101161 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110011101161 is an equidigital number, since it uses as much as digits as its factorization.

111110011101161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 17.

Adding to 111110011101161 its reverse (161101110011111), we get a palindrome (272211121112272).

The spelling of 111110011101161 in words is "one hundred eleven trillion, one hundred ten billion, eleven million, one hundred one thousand, one hundred sixty-one".