3120872171 has 2 divisors, whose sum is σ = 3120872172. Its totient is φ = 3120872170.

The previous prime is 3120872159. The next prime is 3120872221. The reversal of 3120872171 is 1712780213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3120872171 - 2⁶ = 3120872107 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120872101) 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, 1560436085 + 1560436086.

It is an arithmetic number, because the mean of its divisors is an integer number (1560436086).

Almost surely, 2^3120872171 is an apocalyptic number.

3120872171 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120872171 is an equidigital number, since it uses as much as digits as its factorization.

3120872171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 3120872171 is about 55864.7668123657. The cubic root of 3120872171 is about 1461.3648603868.

The spelling of 3120872171 in words is "three billion, one hundred twenty million, eight hundred seventy-two thousand, one hundred seventy-one".