323023320161 has 2 divisors, whose sum is σ = 323023320162. Its totient is φ = 323023320160.

The previous prime is 323023320157. The next prime is 323023320203. The reversal of 323023320161 is 161023320323.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297767753761 + 25255566400 = 545681^2 + 158920^2 .

It is a cyclic number.

It is not a de Polignac number, because 323023320161 - 2² = 323023320157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323023320161.

It is not a weakly prime, because it can be changed into another prime (323023520161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161511660080 + 161511660081.

It is an arithmetic number, because the mean of its divisors is an integer number (161511660081).

Almost surely, 2^323023320161 is an apocalyptic number.

It is an amenable number.

323023320161 is a deficient number, since it is larger than the sum of its proper divisors (1).

323023320161 is an equidigital number, since it uses as much as digits as its factorization.

323023320161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 323023320161 its reverse (161023320323), we get a palindrome (484046640484).

The spelling of 323023320161 in words is "three hundred twenty-three billion, twenty-three million, three hundred twenty thousand, one hundred sixty-one".