2102889111 has 4 divisors (see below), whose sum is σ = 2803852152. Its totient is φ = 1401926072.

The previous prime is 2102889101. The next prime is 2102889143. The reversal of 2102889111 is 1119882012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102889111 - 2¹⁰ = 2102888087 is a prime.

It is a super-2 number, since 2×2102889111² = 8844285226324740642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102889101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350481516 + ... + 350481521.

It is an arithmetic number, because the mean of its divisors is an integer number (700963038).

Almost surely, 2^2102889111 is an apocalyptic number.

2102889111 is a deficient number, since it is larger than the sum of its proper divisors (700963041).

2102889111 is an equidigital number, since it uses as much as digits as its factorization.

2102889111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700963040.

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 2102889111 is about 45857.2689003608. The cubic root of 2102889111 is about 1281.1661554620.

The spelling of 2102889111 in words is "two billion, one hundred two million, eight hundred eighty-nine thousand, one hundred eleven".