120320215 has 12 divisors (see below), whose sum is σ = 145333656. Its totient is φ = 95626928.

The previous prime is 120320197. The next prime is 120320219. The reversal of 120320215 is 512023021.

It is a de Polignac number, because none of the positive numbers 2^k-120320215 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 (120320219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257412 + ... + 257878.

It is an arithmetic number, because the mean of its divisors is an integer number (12111138).

Almost surely, 2^120320215 is an apocalyptic number.

120320215 is a deficient number, since it is larger than the sum of its proper divisors (25013441).

120320215 is an frugal number, since it uses more digits than its factorization.

120320215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 120320215 is about 10969.0571609414. The cubic root of 120320215 is about 493.6807574748.

Adding to 120320215 its reverse (512023021), we get a palindrome (632343236).

The spelling of 120320215 in words is "one hundred twenty million, three hundred twenty thousand, two hundred fifteen".