323031021121 has 4 divisors (see below), whose sum is σ = 324371399044. Its totient is φ = 321690643200.

The previous prime is 323031021109. The next prime is 323031021169. The reversal of 323031021121 is 121120130323.

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 295108611121 + 27922410000 = 543239^2 + 167100^2 .

It is a cyclic number.

It is not a de Polignac number, because 323031021121 - 2²⁷ = 322896803393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323031021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670188600 + ... + 670189081.

It is an arithmetic number, because the mean of its divisors is an integer number (81092849761).

Almost surely, 2^323031021121 is an apocalyptic number.

It is an amenable number.

323031021121 is a deficient number, since it is larger than the sum of its proper divisors (1340377923).

323031021121 is a wasteful number, since it uses less digits than its factorization.

323031021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340377922.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 323031021121 its reverse (121120130323), we get a palindrome (444151151444).

The spelling of 323031021121 in words is "three hundred twenty-three billion, thirty-one million, twenty-one thousand, one hundred twenty-one".