321012030310057 has 2 divisors, whose sum is σ = 321012030310058. Its totient is φ = 321012030310056.

The previous prime is 321012030310009. The next prime is 321012030310133. The reversal of 321012030310057 is 750013030210123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165067480883881 + 155944549426176 = 12847859^2 + 12487776^2 .

It is an emirp because it is prime and its reverse (750013030210123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321012030310057 is a prime.

It is not a weakly prime, because it can be changed into another prime (321012030310957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160506015155028 + 160506015155029.

It is an arithmetic number, because the mean of its divisors is an integer number (160506015155029).

Almost surely, 2^{321012030310057} is an apocalyptic number.

It is an amenable number.

321012030310057 is a deficient number, since it is larger than the sum of its proper divisors (1).

321012030310057 is an equidigital number, since it uses as much as digits as its factorization.

321012030310057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The spelling of 321012030310057 in words is "three hundred twenty-one trillion, twelve billion, thirty million, three hundred ten thousand, fifty-seven".