120911 has 8 divisors (see below), whose sum is σ = 144384. Its totient is φ = 99000.

The previous prime is 120907. The next prime is 120917. The reversal of 120911 is 119021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120911 - 2² = 120907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215 + ... + 536.

It is an arithmetic number, because the mean of its divisors is an integer number (18048).

2¹²⁰⁹¹¹ is an apocalyptic number.

120911 is a deficient number, since it is larger than the sum of its proper divisors (23473).

120911 is an equidigital number, since it uses as much as digits as its factorization.

120911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 120911 is about 347.7225905805. The cubic root of 120911 is about 49.4487446872.

Adding to 120911 its reverse (119021), we get a palindrome (239932).

The spelling of 120911 in words is "one hundred twenty thousand, nine hundred eleven".