323611620401 has 2 divisors, whose sum is σ = 323611620402. Its totient is φ = 323611620400.

The previous prime is 323611620379. The next prime is 323611620427. The reversal of 323611620401 is 104026116323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282759126001 + 40852494400 = 531751^2 + 202120^2 .

It is a cyclic number.

It is not a de Polignac number, because 323611620401 - 2²² = 323607426097 is a prime.

It is not a weakly prime, because it can be changed into another prime (323611625401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161805810200 + 161805810201.

It is an arithmetic number, because the mean of its divisors is an integer number (161805810201).

Almost surely, 2^323611620401 is an apocalyptic number.

It is an amenable number.

323611620401 is a deficient number, since it is larger than the sum of its proper divisors (1).

323611620401 is an equidigital number, since it uses as much as digits as its factorization.

323611620401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 323611620401 its reverse (104026116323), we get a palindrome (427637736724).

The spelling of 323611620401 in words is "three hundred twenty-three billion, six hundred eleven million, six hundred twenty thousand, four hundred one".