120111330161 has 2 divisors, whose sum is σ = 120111330162. Its totient is φ = 120111330160.

The previous prime is 120111330127. The next prime is 120111330169. The reversal of 120111330161 is 161033111021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97628127025 + 22483203136 = 312455^2 + 149944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111330161 is a prime.

It is not a weakly prime, because it can be changed into another prime (120111330169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055665080 + 60055665081.

It is an arithmetic number, because the mean of its divisors is an integer number (60055665081).

Almost surely, 2^120111330161 is an apocalyptic number.

It is an amenable number.

120111330161 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111330161 is an equidigital number, since it uses as much as digits as its factorization.

120111330161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 120111330161 its reverse (161033111021), we get a palindrome (281144441182).

The spelling of 120111330161 in words is "one hundred twenty billion, one hundred eleven million, three hundred thirty thousand, one hundred sixty-one".