2109388571 has 2 divisors, whose sum is σ = 2109388572. Its totient is φ = 2109388570.

The previous prime is 2109388553. The next prime is 2109388639. The reversal of 2109388571 is 1758839012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109388571 - 2⁶ = 2109388507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2109388871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054694285 + 1054694286.

It is an arithmetic number, because the mean of its divisors is an integer number (1054694286).

Almost surely, 2^2109388571 is an apocalyptic number.

2109388571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109388571 is an equidigital number, since it uses as much as digits as its factorization.

2109388571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 2109388571 is about 45928.0804192816. The cubic root of 2109388571 is about 1282.4847103523.

The spelling of 2109388571 in words is "two billion, one hundred nine million, three hundred eighty-eight thousand, five hundred seventy-one".