120520073 has 2 divisors, whose sum is σ = 120520074. Its totient is φ = 120520072.

The previous prime is 120520031. The next prime is 120520087. The reversal of 120520073 is 370025021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95199049 + 25321024 = 9757^2 + 5032^2 .

It is a cyclic number.

It is not a de Polignac number, because 120520073 - 2⁶ = 120520009 is a prime.

It is not a weakly prime, because it can be changed into another prime (120520273) 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 as a sum of consecutive naturals, namely, 60260036 + 60260037.

It is an arithmetic number, because the mean of its divisors is an integer number (60260037).

Almost surely, 2^120520073 is an apocalyptic number.

It is an amenable number.

120520073 is a deficient number, since it is larger than the sum of its proper divisors (1).

120520073 is an equidigital number, since it uses as much as digits as its factorization.

120520073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 120520073 is about 10978.1634620732. The cubic root of 120520073 is about 493.9539492223.

Adding to 120520073 its reverse (370025021), we get a palindrome (490545094).

The spelling of 120520073 in words is "one hundred twenty million, five hundred twenty thousand, seventy-three".