323213011103221 has 2 divisors, whose sum is σ = 323213011103222. Its totient is φ = 323213011103220.

The previous prime is 323213011103041. The next prime is 323213011103239. The reversal of 323213011103221 is 122301110312323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317969025602596 + 5243985500625 = 17831686^2 + 2289975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323213011103221 is a prime.

It is a super-2 number, since 2×323213011103221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323213011103261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606505551610 + 161606505551611.

It is an arithmetic number, because the mean of its divisors is an integer number (161606505551611).

Almost surely, 2^{323213011103221} is an apocalyptic number.

It is an amenable number.

323213011103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

323213011103221 is an equidigital number, since it uses as much as digits as its factorization.

323213011103221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 323213011103221 its reverse (122301110312323), we get a palindrome (445514121415544).

The spelling of 323213011103221 in words is "three hundred twenty-three trillion, two hundred thirteen billion, eleven million, one hundred three thousand, two hundred twenty-one".