331143113317 has 2 divisors, whose sum is σ = 331143113318. Its totient is φ = 331143113316.

The previous prime is 331143113299. The next prime is 331143113351. The reversal of 331143113317 is 713311341133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298377045121 + 32766068196 = 546239^2 + 181014^2 .

It is a cyclic number.

It is not a de Polignac number, because 331143113317 - 2¹¹ = 331143111269 is a prime.

It is a super-2 number, since 2×331143113317² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331143113377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165571556658 + 165571556659.

It is an arithmetic number, because the mean of its divisors is an integer number (165571556659).

Almost surely, 2^331143113317 is an apocalyptic number.

It is an amenable number.

331143113317 is a deficient number, since it is larger than the sum of its proper divisors (1).

331143113317 is an equidigital number, since it uses as much as digits as its factorization.

331143113317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 31.

The spelling of 331143113317 in words is "three hundred thirty-one billion, one hundred forty-three million, one hundred thirteen thousand, three hundred seventeen".