31320330122117 has 2 divisors, whose sum is σ = 31320330122118. Its totient is φ = 31320330122116.

The previous prime is 31320330122047. The next prime is 31320330122143. The reversal of 31320330122117 is 71122103302313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29584178669956 + 1736151452161 = 5439134^2 + 1317631^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320330122117 - 2¹⁴ = 31320330105733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31320330122117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31320330122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660165061058 + 15660165061059.

It is an arithmetic number, because the mean of its divisors is an integer number (15660165061059).

Almost surely, 2^{31320330122117} is an apocalyptic number.

It is an amenable number.

31320330122117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31320330122117 is an equidigital number, since it uses as much as digits as its factorization.

31320330122117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 31320330122117 in words is "thirty-one trillion, three hundred twenty billion, three hundred thirty million, one hundred twenty-two thousand, one hundred seventeen".