30311105317 has 2 divisors, whose sum is σ = 30311105318. Its totient is φ = 30311105316.

The previous prime is 30311105311. The next prime is 30311105329. The reversal of 30311105317 is 71350111303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30016948516 + 294156801 = 173254^2 + 17151^2 .

It is an emirp because it is prime and its reverse (71350111303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30311105317 - 2³ = 30311105309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30311105291 and 30311105300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30311105311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155552658 + 15155552659.

It is an arithmetic number, because the mean of its divisors is an integer number (15155552659).

Almost surely, 2^30311105317 is an apocalyptic number.

It is an amenable number.

30311105317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311105317 is an equidigital number, since it uses as much as digits as its factorization.

30311105317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The spelling of 30311105317 in words is "thirty billion, three hundred eleven million, one hundred five thousand, three hundred seventeen".