2031212017 has 2 divisors, whose sum is σ = 2031212018. Its totient is φ = 2031212016.

The previous prime is 2031212009. The next prime is 2031212063. The reversal of 2031212017 is 7102121302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1928878561 + 102333456 = 43919^2 + 10116^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031212017 - 2³ = 2031212009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031211985 and 2031212003.

It is not a weakly prime, because it can be changed into another prime (2031212077) 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, 1015606008 + 1015606009.

It is an arithmetic number, because the mean of its divisors is an integer number (1015606009).

Almost surely, 2^2031212017 is an apocalyptic number.

It is an amenable number.

2031212017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031212017 is an equidigital number, since it uses as much as digits as its factorization.

2031212017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2031212017 is about 45068.9695577789. The cubic root of 2031212017 is about 1266.4413608114.

Adding to 2031212017 its reverse (7102121302), we get a palindrome (9133333319).

The spelling of 2031212017 in words is "two billion, thirty-one million, two hundred twelve thousand, seventeen".