31317704683501 has 2 divisors, whose sum is σ = 31317704683502. Its totient is φ = 31317704683500.

The previous prime is 31317704683439. The next prime is 31317704683513. The reversal of 31317704683501 is 10538640771313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26691957613476 + 4625747070025 = 5166426^2 + 2150755^2 .

It is a cyclic number.

It is not a de Polignac number, because 31317704683501 - 2¹¹ = 31317704681453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31317704683561) 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, 15658852341750 + 15658852341751.

It is an arithmetic number, because the mean of its divisors is an integer number (15658852341751).

Almost surely, 2^{31317704683501} is an apocalyptic number.

It is an amenable number.

31317704683501 is a deficient number, since it is larger than the sum of its proper divisors (1).

31317704683501 is an equidigital number, since it uses as much as digits as its factorization.

31317704683501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 31317704683501 in words is "thirty-one trillion, three hundred seventeen billion, seven hundred four million, six hundred eighty-three thousand, five hundred one".