3128973271 has 2 divisors, whose sum is σ = 3128973272. Its totient is φ = 3128973270.

The previous prime is 3128973247. The next prime is 3128973283. The reversal of 3128973271 is 1723798213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3128973271 - 2³¹ = 981489623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3128973971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564486635 + 1564486636.

It is an arithmetic number, because the mean of its divisors is an integer number (1564486636).

Almost surely, 2^3128973271 is an apocalyptic number.

3128973271 is a deficient number, since it is larger than the sum of its proper divisors (1).

3128973271 is an equidigital number, since it uses as much as digits as its factorization.

3128973271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 3128973271 is about 55937.2261646929. The cubic root of 3128973271 is about 1462.6282288133.

The spelling of 3128973271 in words is "three billion, one hundred twenty-eight million, nine hundred seventy-three thousand, two hundred seventy-one".