321525314401 has 2 divisors, whose sum is σ = 321525314402. Its totient is φ = 321525314400.

The previous prime is 321525314371. The next prime is 321525314483. The reversal of 321525314401 is 104413525123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291436942801 + 30088371600 = 539849^2 + 173460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321525314401 is a prime.

It is not a weakly prime, because it can be changed into another prime (321525314491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160762657200 + 160762657201.

It is an arithmetic number, because the mean of its divisors is an integer number (160762657201).

Almost surely, 2^321525314401 is an apocalyptic number.

It is an amenable number.

321525314401 is a deficient number, since it is larger than the sum of its proper divisors (1).

321525314401 is an equidigital number, since it uses as much as digits as its factorization.

321525314401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 321525314401 its reverse (104413525123), we get a palindrome (425938839524).

The spelling of 321525314401 in words is "three hundred twenty-one billion, five hundred twenty-five million, three hundred fourteen thousand, four hundred one".