120030161 has 2 divisors, whose sum is σ = 120030162. Its totient is φ = 120030160.

The previous prime is 120030137. The next prime is 120030167. The reversal of 120030161 is 161030021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69889600 + 50140561 = 8360^2 + 7081^2 .

It is an emirp because it is prime and its reverse (161030021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120030161 - 2¹⁸ = 119768017 is a prime.

It is not a weakly prime, because it can be changed into another prime (120030167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60015080 + 60015081.

It is an arithmetic number, because the mean of its divisors is an integer number (60015081).

Almost surely, 2^120030161 is an apocalyptic number.

It is an amenable number.

120030161 is a deficient number, since it is larger than the sum of its proper divisors (1).

120030161 is an equidigital number, since it uses as much as digits as its factorization.

120030161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 120030161 is about 10955.8277186162. The cubic root of 120030161 is about 493.2837355280.

Adding to 120030161 its reverse (161030021), we get a palindrome (281060182).

The spelling of 120030161 in words is "one hundred twenty million, thirty thousand, one hundred sixty-one".