321042620341 has 2 divisors, whose sum is σ = 321042620342. Its totient is φ = 321042620340.

The previous prime is 321042620293. The next prime is 321042620359. The reversal of 321042620341 is 143026240123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285935103441 + 35107516900 = 534729^2 + 187370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321042620341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321042627341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160521310170 + 160521310171.

It is an arithmetic number, because the mean of its divisors is an integer number (160521310171).

Almost surely, 2^321042620341 is an apocalyptic number.

It is an amenable number.

321042620341 is a deficient number, since it is larger than the sum of its proper divisors (1).

321042620341 is an equidigital number, since it uses as much as digits as its factorization.

321042620341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 321042620341 its reverse (143026240123), we get a palindrome (464068860464).

The spelling of 321042620341 in words is "three hundred twenty-one billion, forty-two million, six hundred twenty thousand, three hundred forty-one".