321145010401 has 2 divisors, whose sum is σ = 321145010402. Its totient is φ = 321145010400.

The previous prime is 321145010387. The next prime is 321145010441. The reversal of 321145010401 is 104010541123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258282486225 + 62862524176 = 508215^2 + 250724^2 .

It is a cyclic number.

It is not a de Polignac number, because 321145010401 - 2⁵ = 321145010369 is a prime.

It is not a weakly prime, because it can be changed into another prime (321145010441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160572505200 + 160572505201.

It is an arithmetic number, because the mean of its divisors is an integer number (160572505201).

Almost surely, 2^321145010401 is an apocalyptic number.

It is an amenable number.

321145010401 is a deficient number, since it is larger than the sum of its proper divisors (1).

321145010401 is an equidigital number, since it uses as much as digits as its factorization.

321145010401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 321145010401 its reverse (104010541123), we get a palindrome (425155551524).

The spelling of 321145010401 in words is "three hundred twenty-one billion, one hundred forty-five million, ten thousand, four hundred one".