120312012017 has 2 divisors, whose sum is σ = 120312012018. Its totient is φ = 120312012016.

The previous prime is 120312011971. The next prime is 120312012071. The reversal of 120312012017 is 710210213021.

Together with next prime (120312012071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112463646736 + 7848365281 = 335356^2 + 88591^2 .

It is a cyclic number.

It is not a de Polignac number, because 120312012017 - 2⁸ = 120312011761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120312012017.

It is not a weakly prime, because it can be changed into another prime (120312012517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60156006008 + 60156006009.

It is an arithmetic number, because the mean of its divisors is an integer number (60156006009).

Almost surely, 2^120312012017 is an apocalyptic number.

It is an amenable number.

120312012017 is a deficient number, since it is larger than the sum of its proper divisors (1).

120312012017 is an equidigital number, since it uses as much as digits as its factorization.

120312012017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 120312012017 its reverse (710210213021), we get a palindrome (830522225038).

The spelling of 120312012017 in words is "one hundred twenty billion, three hundred twelve million, twelve thousand, seventeen".