323210113856257 has 2 divisors, whose sum is σ = 323210113856258. Its totient is φ = 323210113856256.

The previous prime is 323210113856207. The next prime is 323210113856369. The reversal of 323210113856257 is 752658311012323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225808294632561 + 97401819223696 = 15026919^2 + 9869236^2 .

It is an emirp because it is prime and its reverse (752658311012323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323210113856257 - 2³¹ = 323207966372609 is a prime.

It is a super-2 number, since 2×323210113856257² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323210113856257.

It is not a weakly prime, because it can be changed into another prime (323210113856207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161605056928128 + 161605056928129.

It is an arithmetic number, because the mean of its divisors is an integer number (161605056928129).

Almost surely, 2^{323210113856257} is an apocalyptic number.

It is an amenable number.

323210113856257 is a deficient number, since it is larger than the sum of its proper divisors (1).

323210113856257 is an equidigital number, since it uses as much as digits as its factorization.

323210113856257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 323210113856257 in words is "three hundred twenty-three trillion, two hundred ten billion, one hundred thirteen million, eight hundred fifty-six thousand, two hundred fifty-seven".