2111209143 has 8 divisors (see below), whose sum is σ = 2815341168. Its totient is φ = 1407274944.

The previous prime is 2111209127. The next prime is 2111209183. The reversal of 2111209143 is 3419021112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111209143 - 2⁴ = 2111209127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111209103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22446 + ... + 68747.

It is an arithmetic number, because the mean of its divisors is an integer number (351917646).

Almost surely, 2^2111209143 is an apocalyptic number.

2111209143 is a deficient number, since it is larger than the sum of its proper divisors (704132025).

2111209143 is an equidigital number, since it uses as much as digits as its factorization.

2111209143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98913.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2111209143 is about 45947.8959583570. The cubic root of 2111209143 is about 1282.8535667412.

The spelling of 2111209143 in words is "two billion, one hundred eleven million, two hundred nine thousand, one hundred forty-three".