31553114717 has 2 divisors, whose sum is σ = 31553114718. Its totient is φ = 31553114716.

The previous prime is 31553114699. The next prime is 31553114729. The reversal of 31553114717 is 71741135513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23175190756 + 8377923961 = 152234^2 + 91531^2 .

It is a cyclic number.

It is not a de Polignac number, because 31553114717 - 2⁶ = 31553114653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31553114767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15776557358 + 15776557359.

It is an arithmetic number, because the mean of its divisors is an integer number (15776557359).

Almost surely, 2^31553114717 is an apocalyptic number.

It is an amenable number.

31553114717 is a deficient number, since it is larger than the sum of its proper divisors (1).

31553114717 is an equidigital number, since it uses as much as digits as its factorization.

31553114717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The spelling of 31553114717 in words is "thirty-one billion, five hundred fifty-three million, one hundred fourteen thousand, seven hundred seventeen".