120442111 has 2 divisors, whose sum is σ = 120442112. Its totient is φ = 120442110.

The previous prime is 120442061. The next prime is 120442171. The reversal of 120442111 is 111244021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120442111 - 2⁷ = 120441983 is a prime.

It is a super-3 number, since 3×120442111³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120442171) 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, 60221055 + 60221056.

It is an arithmetic number, because the mean of its divisors is an integer number (60221056).

Almost surely, 2^120442111 is an apocalyptic number.

120442111 is a deficient number, since it is larger than the sum of its proper divisors (1).

120442111 is an equidigital number, since it uses as much as digits as its factorization.

120442111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 120442111 is about 10974.6121115965. The cubic root of 120442111 is about 493.8474166381.

Adding to 120442111 its reverse (111244021), we get a palindrome (231686132).

The spelling of 120442111 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred eleven".