3217971143 has 2 divisors, whose sum is σ = 3217971144. Its totient is φ = 3217971142.

The previous prime is 3217971103. The next prime is 3217971149. The reversal of 3217971143 is 3411797123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3217971143 - 2⁶ = 3217971079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3217971097 and 3217971106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3217971149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608985571 + 1608985572.

It is an arithmetic number, because the mean of its divisors is an integer number (1608985572).

Almost surely, 2^3217971143 is an apocalyptic number.

3217971143 is a deficient number, since it is larger than the sum of its proper divisors (1).

3217971143 is an equidigital number, since it uses as much as digits as its factorization.

3217971143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 3217971143 is about 56727.1640662567. The cubic root of 3217971143 is about 1476.3660454729.

The spelling of 3217971143 in words is "three billion, two hundred seventeen million, nine hundred seventy-one thousand, one hundred forty-three".