2121063089 has 4 divisors (see below), whose sum is σ = 2245831524. Its totient is φ = 1996294656.

The previous prime is 2121063083. The next prime is 2121063143. The reversal of 2121063089 is 9803601212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1651040689 + 470022400 = 40633^2 + 21680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121063089 - 2²⁰ = 2120014513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121063083) 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, 62384192 + ... + 62384225.

It is an arithmetic number, because the mean of its divisors is an integer number (561457881).

Almost surely, 2^2121063089 is an apocalyptic number.

It is an amenable number.

2121063089 is a deficient number, since it is larger than the sum of its proper divisors (124768435).

2121063089 is a wasteful number, since it uses less digits than its factorization.

2121063089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124768434.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2121063089 is about 46055.0006948214. Note that the first 3 decimals coincide. The cubic root of 2121063089 is about 1284.8463510414.

The spelling of 2121063089 in words is "two billion, one hundred twenty-one million, sixty-three thousand, eighty-nine".