120655111 has 4 divisors (see below), whose sum is σ = 127005400. Its totient is φ = 114304824.

The previous prime is 120655091. The next prime is 120655123. The reversal of 120655111 is 111556021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111556021 = 967 ⋅115363.

It is a cyclic number.

It is not a de Polignac number, because 120655111 - 2⁷ = 120654983 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 (120655151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3175116 + ... + 3175153.

It is an arithmetic number, because the mean of its divisors is an integer number (31751350).

Almost surely, 2^120655111 is an apocalyptic number.

120655111 is a deficient number, since it is larger than the sum of its proper divisors (6350289).

120655111 is an equidigital number, since it uses as much as digits as its factorization.

120655111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350288.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 120655111 is about 10984.3120403601. The cubic root of 120655111 is about 494.1383656843.

The spelling of 120655111 in words is "one hundred twenty million, six hundred fifty-five thousand, one hundred eleven".