853321121 has 8 divisors (see below), whose sum is σ = 879726144. Its totient is φ = 827092080.

The previous prime is 853321109. The next prime is 853321181. The reversal of 853321121 is 121123358.

853321121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 853321121 - 2⁶ = 853321057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853321181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34115 + ... + 53576.

It is an arithmetic number, because the mean of its divisors is an integer number (109965768).

Almost surely, 2^853321121 is an apocalyptic number.

It is an amenable number.

853321121 is a deficient number, since it is larger than the sum of its proper divisors (26405023).

853321121 is a wasteful number, since it uses less digits than its factorization.

853321121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87991.

The product of its digits is 1440, while the sum is 26.

The square root of 853321121 is about 29211.6607025345. The cubic root of 853321121 is about 948.5003563876.

Adding to 853321121 its reverse (121123358), we get a palindrome (974444479).

The spelling of 853321121 in words is "eight hundred fifty-three million, three hundred twenty-one thousand, one hundred twenty-one".