323212000021121 has 4 divisors (see below), whose sum is σ = 323212298434644. Its totient is φ = 323211701607600.

The previous prime is 323212000021061. The next prime is 323212000021123. The reversal of 323212000021121 is 121120000212323.

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 9237131740225 + 313974868280896 = 3039265^2 + 17719336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323212000021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323212000021093 and 323212000021102.

It is not an unprimeable number, because it can be changed into a prime (323212000021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147576170 + ... + 149750291.

It is an arithmetic number, because the mean of its divisors is an integer number (80803074608661).

Almost surely, 2^{323212000021121} is an apocalyptic number.

It is an amenable number.

323212000021121 is a deficient number, since it is larger than the sum of its proper divisors (298413523).

323212000021121 is a wasteful number, since it uses less digits than its factorization.

323212000021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298413522.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 323212000021121 its reverse (121120000212323), we get a palindrome (444332000233444).

The spelling of 323212000021121 in words is "three hundred twenty-three trillion, two hundred twelve billion, twenty-one thousand, one hundred twenty-one".