31031113023017 has 2 divisors, whose sum is σ = 31031113023018. Its totient is φ = 31031113023016.

The previous prime is 31031113023011. The next prime is 31031113023037. The reversal of 31031113023017 is 71032031113013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27477526093801 + 3553586929216 = 5241901^2 + 1885096^2 .

It is a cyclic number.

It is not a de Polignac number, because 31031113023017 - 2¹² = 31031113018921 is a prime.

It is not a weakly prime, because it can be changed into another prime (31031113023011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515556511508 + 15515556511509.

It is an arithmetic number, because the mean of its divisors is an integer number (15515556511509).

Almost surely, 2^{31031113023017} is an apocalyptic number.

It is an amenable number.

31031113023017 is a deficient number, since it is larger than the sum of its proper divisors (1).

31031113023017 is an equidigital number, since it uses as much as digits as its factorization.

31031113023017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The spelling of 31031113023017 in words is "thirty-one trillion, thirty-one billion, one hundred thirteen million, twenty-three thousand, seventeen".