331130311117 has 2 divisors, whose sum is σ = 331130311118. Its totient is φ = 331130311116.

The previous prime is 331130311103. The next prime is 331130311123. The reversal of 331130311117 is 711113031133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265658807241 + 65471503876 = 515421^2 + 255874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331130311117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331130311091 and 331130311100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331130317117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165565155558 + 165565155559.

It is an arithmetic number, because the mean of its divisors is an integer number (165565155559).

Almost surely, 2^331130311117 is an apocalyptic number.

It is an amenable number.

331130311117 is a deficient number, since it is larger than the sum of its proper divisors (1).

331130311117 is an equidigital number, since it uses as much as digits as its factorization.

331130311117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 25.

The spelling of 331130311117 in words is "three hundred thirty-one billion, one hundred thirty million, three hundred eleven thousand, one hundred seventeen".