31241454317 has 2 divisors, whose sum is σ = 31241454318. Its totient is φ = 31241454316.

The previous prime is 31241454259. The next prime is 31241454379. The reversal of 31241454317 is 71345414213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25084541161 + 6156913156 = 158381^2 + 78466^2 .

It is a cyclic number.

It is not a de Polignac number, because 31241454317 - 2⁸ = 31241454061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31247454317) 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, 15620727158 + 15620727159.

It is an arithmetic number, because the mean of its divisors is an integer number (15620727159).

Almost surely, 2^31241454317 is an apocalyptic number.

It is an amenable number.

31241454317 is a deficient number, since it is larger than the sum of its proper divisors (1).

31241454317 is an equidigital number, since it uses as much as digits as its factorization.

31241454317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The spelling of 31241454317 in words is "thirty-one billion, two hundred forty-one million, four hundred fifty-four thousand, three hundred seventeen".