120565101 has 4 divisors (see below), whose sum is σ = 160753472. Its totient is φ = 80376732.

The previous prime is 120565099. The next prime is 120565147. The reversal of 120565101 is 101565021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120565101 - 2¹ = 120565099 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120565001) 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, 20094181 + ... + 20094186.

It is an arithmetic number, because the mean of its divisors is an integer number (40188368).

Almost surely, 2^120565101 is an apocalyptic number.

It is an amenable number.

120565101 is a deficient number, since it is larger than the sum of its proper divisors (40188371).

120565101 is an equidigital number, since it uses as much as digits as its factorization.

120565101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40188370.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 120565101 is about 10980.2140689515. The cubic root of 120565101 is about 494.0154576181.

The spelling of 120565101 in words is "one hundred twenty million, five hundred sixty-five thousand, one hundred one".