120543101 has 4 divisors (see below), whose sum is σ = 137763552. Its totient is φ = 103322652.

The previous prime is 120543083. The next prime is 120543103. The reversal of 120543101 is 101345021.

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 a cyclic number.

It is not a de Polignac number, because 120543101 - 2⁶ = 120543037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120543101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120543103) 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 in 3 ways as a sum of consecutive naturals, for example, 8610215 + ... + 8610228.

It is an arithmetic number, because the mean of its divisors is an integer number (34440888).

Almost surely, 2^120543101 is an apocalyptic number.

It is an amenable number.

120543101 is a deficient number, since it is larger than the sum of its proper divisors (17220451).

120543101 is an equidigital number, since it uses as much as digits as its factorization.

120543101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220450.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 120543101 is about 10979.2122212844. The cubic root of 120543101 is about 493.9854074596.

Adding to 120543101 its reverse (101345021), we get a palindrome (221888122).

The spelling of 120543101 in words is "one hundred twenty million, five hundred forty-three thousand, one hundred one".