2109518711 has 2 divisors, whose sum is σ = 2109518712. Its totient is φ = 2109518710.

The previous prime is 2109518699. The next prime is 2109518737. The reversal of 2109518711 is 1178159012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2109518711 - 2⁶ = 2109518647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2109518771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054759355 + 1054759356.

It is an arithmetic number, because the mean of its divisors is an integer number (1054759356).

Almost surely, 2^2109518711 is an apocalyptic number.

2109518711 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109518711 is an equidigital number, since it uses as much as digits as its factorization.

2109518711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 35.

The square root of 2109518711 is about 45929.4971777397. The cubic root of 2109518711 is about 1282.5110843658.

The spelling of 2109518711 in words is "two billion, one hundred nine million, five hundred eighteen thousand, seven hundred eleven".