321201153123377 has 2 divisors, whose sum is σ = 321201153123378. Its totient is φ = 321201153123376.

The previous prime is 321201153123371. The next prime is 321201153123443. The reversal of 321201153123377 is 773321351102123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269677124578801 + 51524028544576 = 16421849^2 + 7178024^2 .

It is a cyclic number.

It is not a de Polignac number, because 321201153123377 - 2⁶ = 321201153123313 is a prime.

It is not a weakly prime, because it can be changed into another prime (321201153123371) 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, 160600576561688 + 160600576561689.

It is an arithmetic number, because the mean of its divisors is an integer number (160600576561689).

Almost surely, 2^{321201153123377} is an apocalyptic number.

It is an amenable number.

321201153123377 is a deficient number, since it is larger than the sum of its proper divisors (1).

321201153123377 is an equidigital number, since it uses as much as digits as its factorization.

321201153123377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 321201153123377 in words is "three hundred twenty-one trillion, two hundred one billion, one hundred fifty-three million, one hundred twenty-three thousand, three hundred seventy-seven".