321110841157 has 2 divisors, whose sum is σ = 321110841158. Its totient is φ = 321110841156.

The previous prime is 321110841109. The next prime is 321110841173. The reversal of 321110841157 is 751148011123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210620416356 + 110490424801 = 458934^2 + 332401^2 .

It is a cyclic number.

It is not a de Polignac number, because 321110841157 - 2²³ = 321102452549 is a prime.

It is a super-2 number, since 2×321110841157² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321110845157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160555420578 + 160555420579.

It is an arithmetic number, because the mean of its divisors is an integer number (160555420579).

Almost surely, 2^321110841157 is an apocalyptic number.

It is an amenable number.

321110841157 is a deficient number, since it is larger than the sum of its proper divisors (1).

321110841157 is an equidigital number, since it uses as much as digits as its factorization.

321110841157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 34.

The spelling of 321110841157 in words is "three hundred twenty-one billion, one hundred ten million, eight hundred forty-one thousand, one hundred fifty-seven".