323123100113221 has 2 divisors, whose sum is σ = 323123100113222. Its totient is φ = 323123100113220.

The previous prime is 323123100113173. The next prime is 323123100113239. The reversal of 323123100113221 is 122311001321323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172978023756321 + 150145076356900 = 13152111^2 + 12253370^2 .

It is a cyclic number.

It is not a de Polignac number, because 323123100113221 - 2²³ = 323123091724613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323123100113621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161561550056610 + 161561550056611.

It is an arithmetic number, because the mean of its divisors is an integer number (161561550056611).

Almost surely, 2^{323123100113221} is an apocalyptic number.

It is an amenable number.

323123100113221 is a deficient number, since it is larger than the sum of its proper divisors (1).

323123100113221 is an equidigital number, since it uses as much as digits as its factorization.

323123100113221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 323123100113221 its reverse (122311001321323), we get a palindrome (445434101434544).

The spelling of 323123100113221 in words is "three hundred twenty-three trillion, one hundred twenty-three billion, one hundred million, one hundred thirteen thousand, two hundred twenty-one".