321074555047 has 2 divisors, whose sum is σ = 321074555048. Its totient is φ = 321074555046.

The previous prime is 321074554981. The next prime is 321074555059. The reversal of 321074555047 is 740555470123.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321074555047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321074554994 and 321074555012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321074558047) 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, 160537277523 + 160537277524.

It is an arithmetic number, because the mean of its divisors is an integer number (160537277524).

Almost surely, 2^321074555047 is an apocalyptic number.

321074555047 is a deficient number, since it is larger than the sum of its proper divisors (1).

321074555047 is an equidigital number, since it uses as much as digits as its factorization.

321074555047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588000, while the sum is 43.

The spelling of 321074555047 in words is "three hundred twenty-one billion, seventy-four million, five hundred fifty-five thousand, forty-seven".