323212120321 has 4 divisors (see below), whose sum is σ = 323249533444. Its totient is φ = 323174707200.

The previous prime is 323212120279. The next prime is 323212120337. The reversal of 323212120321 is 123021212323.

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 165356089600 + 157856030721 = 406640^2 + 397311^2 .

It is a cyclic number.

It is not a de Polignac number, because 323212120321 - 2¹⁵ = 323212087553 is a prime.

It is a super-2 number, since 2×323212120321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323212120292 and 323212120301.

It is not an unprimeable number, because it can be changed into a prime (323212120391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18693600 + ... + 18710881.

It is an arithmetic number, because the mean of its divisors is an integer number (80812383361).

Almost surely, 2^323212120321 is an apocalyptic number.

It is an amenable number.

323212120321 is a deficient number, since it is larger than the sum of its proper divisors (37413123).

323212120321 is an equidigital number, since it uses as much as digits as its factorization.

323212120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37413122.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 323212120321 its reverse (123021212323), we get a palindrome (446233332644).

The spelling of 323212120321 in words is "three hundred twenty-three billion, two hundred twelve million, one hundred twenty thousand, three hundred twenty-one".