120231169 has 2 divisors, whose sum is σ = 120231170. Its totient is φ = 120231168.

The previous prime is 120231121. The next prime is 120231173. The reversal of 120231169 is 961132021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102758769 + 17472400 = 10137^2 + 4180^2 .

It is an emirp because it is prime and its reverse (961132021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120231169 is a prime.

It is a super-2 number, since 2×120231169² = 28911067998213122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60115584 + 60115585.

It is an arithmetic number, because the mean of its divisors is an integer number (60115585).

Almost surely, 2^120231169 is an apocalyptic number.

It is an amenable number.

120231169 is a deficient number, since it is larger than the sum of its proper divisors (1).

120231169 is an equidigital number, since it uses as much as digits as its factorization.

120231169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 120231169 is about 10964.9974464201. The cubic root of 120231169 is about 493.5589404666.

The spelling of 120231169 in words is "one hundred twenty million, two hundred thirty-one thousand, one hundred sixty-nine".