4320121205 has 16 divisors (see below), whose sum is σ = 5308801344. Its totient is φ = 3373117440.

The previous prime is 4320121189. The next prime is 4320121229. The reversal of 4320121205 is 5021210234.

It is not a de Polignac number, because 4320121205 - 2⁴ = 4320121189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299765 + ... + 313845.

It is an arithmetic number, because the mean of its divisors is an integer number (331800084).

Almost surely, 2^4320121205 is an apocalyptic number.

It is an amenable number.

4320121205 is a deficient number, since it is larger than the sum of its proper divisors (988680139).

4320121205 is a wasteful number, since it uses less digits than its factorization.

4320121205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4320121205 is about 65727.6289318274. The cubic root of 4320121205 is about 1628.6658013417.

Adding to 4320121205 its reverse (5021210234), we get a palindrome (9341331439).

The spelling of 4320121205 in words is "four billion, three hundred twenty million, one hundred twenty-one thousand, two hundred five".