31030212203017 has 2 divisors, whose sum is σ = 31030212203018. Its totient is φ = 31030212203016.

The previous prime is 31030212202999. The next prime is 31030212203041. The reversal of 31030212203017 is 71030221203013.

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., 24966621148921 + 6063591054096 = 4996661^2 + 2462436^2 .

It is an emirp because it is prime and its reverse (71030221203013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31030212203017 - 2³¹ = 31028064719369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31030212202982 and 31030212203000.

It is not a weakly prime, because it can be changed into another prime (31030212203047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515106101508 + 15515106101509.

It is an arithmetic number, because the mean of its divisors is an integer number (15515106101509).

Almost surely, 2^{31030212203017} is an apocalyptic number.

It is an amenable number.

31030212203017 is a deficient number, since it is larger than the sum of its proper divisors (1).

31030212203017 is an equidigital number, since it uses as much as digits as its factorization.

31030212203017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The spelling of 31030212203017 in words is "thirty-one trillion, thirty billion, two hundred twelve million, two hundred three thousand, seventeen".