2143113317 has 2 divisors, whose sum is σ = 2143113318. Its totient is φ = 2143113316.

The previous prime is 2143113299. The next prime is 2143113367. The reversal of 2143113317 is 7133113412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1342562881 + 800550436 = 36641^2 + 28294^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143113317 - 2²⁰ = 2142064741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143113367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071556658 + 1071556659.

It is an arithmetic number, because the mean of its divisors is an integer number (1071556659).

Almost surely, 2^2143113317 is an apocalyptic number.

It is an amenable number.

2143113317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143113317 is an equidigital number, since it uses as much as digits as its factorization.

2143113317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 2143113317 is about 46293.7719029245. The cubic root of 2143113317 is about 1289.2833623488.

Adding to 2143113317 its reverse (7133113412), we get a palindrome (9276226729).

The spelling of 2143113317 in words is "two billion, one hundred forty-three million, one hundred thirteen thousand, three hundred seventeen".