120321011 has 4 divisors (see below), whose sum is σ = 121239624. Its totient is φ = 119402400.

The previous prime is 120321007. The next prime is 120321037. The reversal of 120321011 is 110123021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120321011 - 2² = 120321007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120320983 and 120321001.

It is not an unprimeable number, because it can be changed into a prime (120323011) 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, 459110 + ... + 459371.

It is an arithmetic number, because the mean of its divisors is an integer number (30309906).

Almost surely, 2^120321011 is an apocalyptic number.

120321011 is a deficient number, since it is larger than the sum of its proper divisors (918613).

120321011 is an equidigital number, since it uses as much as digits as its factorization.

120321011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918612.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 120321011 is about 10969.0934447656. The cubic root of 120321011 is about 493.6818461503.

Adding to 120321011 its reverse (110123021), we get a palindrome (230444032).

The spelling of 120321011 in words is "one hundred twenty million, three hundred twenty-one thousand, eleven".