331345316417 has 2 divisors, whose sum is σ = 331345316418. Its totient is φ = 331345316416.

The previous prime is 331345316339. The next prime is 331345316431. The reversal of 331345316417 is 714613543133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221879623681 + 109465692736 = 471041^2 + 330856^2 .

It is a cyclic number.

It is not a de Polignac number, because 331345316417 - 2¹⁶ = 331345250881 is a prime.

It is a super-2 number, since 2×331345316417² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (331345316717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165672658208 + 165672658209.

It is an arithmetic number, because the mean of its divisors is an integer number (165672658209).

Almost surely, 2^331345316417 is an apocalyptic number.

It is an amenable number.

331345316417 is a deficient number, since it is larger than the sum of its proper divisors (1).

331345316417 is an equidigital number, since it uses as much as digits as its factorization.

331345316417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The spelling of 331345316417 in words is "three hundred thirty-one billion, three hundred forty-five million, three hundred sixteen thousand, four hundred seventeen".