120513017 has 4 divisors (see below), whose sum is σ = 127602036. Its totient is φ = 113424000.

The previous prime is 120513013. The next prime is 120513023. The reversal of 120513017 is 710315021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 76807696 + 43705321 = 8764^2 + 6611^2 .

It is not a de Polignac number, because 120513017 - 2² = 120513013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120513017.

It is not an unprimeable number, because it can be changed into a prime (120513013) 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 3 ways as a sum of consecutive naturals, for example, 3544484 + ... + 3544517.

It is an arithmetic number, because the mean of its divisors is an integer number (31900509).

Almost surely, 2^120513017 is an apocalyptic number.

120513017 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

120513017 is a deficient number, since it is larger than the sum of its proper divisors (7089019).

120513017 is an equidigital number, since it uses as much as digits as its factorization.

120513017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089018.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 120513017 is about 10977.8420921418. The cubic root of 120513017 is about 493.9443093148.

Adding to 120513017 its reverse (710315021), we get a palindrome (830828038).

The spelling of 120513017 in words is "one hundred twenty million, five hundred thirteen thousand, seventeen".