230120111161 has 2 divisors, whose sum is σ = 230120111162. Its totient is φ = 230120111160.

The previous prime is 230120111099. The next prime is 230120111167. The reversal of 230120111161 is 161111021032.

230120111161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173889000000 + 56231111161 = 417000^2 + 237131^2 .

It is a cyclic number.

It is not a de Polignac number, because 230120111161 - 2⁷ = 230120111033 is a prime.

It is not a weakly prime, because it can be changed into another prime (230120111167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115060055580 + 115060055581.

It is an arithmetic number, because the mean of its divisors is an integer number (115060055581).

Almost surely, 2^230120111161 is an apocalyptic number.

It is an amenable number.

230120111161 is a deficient number, since it is larger than the sum of its proper divisors (1).

230120111161 is an equidigital number, since it uses as much as digits as its factorization.

230120111161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 230120111161 its reverse (161111021032), we get a palindrome (391231132193).

The spelling of 230120111161 in words is "two hundred thirty billion, one hundred twenty million, one hundred eleven thousand, one hundred sixty-one".