323210916820993 has 2 divisors, whose sum is σ = 323210916820994. Its totient is φ = 323210916820992.

The previous prime is 323210916820861. The next prime is 323210916821003. The reversal of 323210916820993 is 399028619012323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166343107323649 + 156867809497344 = 12897407^2 + 12524688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323210916820993 is a prime.

It is not a weakly prime, because it can be changed into another prime (323210916821993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161605458410496 + 161605458410497.

It is an arithmetic number, because the mean of its divisors is an integer number (161605458410497).

Almost surely, 2^{323210916820993} is an apocalyptic number.

It is an amenable number.

323210916820993 is a deficient number, since it is larger than the sum of its proper divisors (1).

323210916820993 is an equidigital number, since it uses as much as digits as its factorization.

323210916820993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7558272, while the sum is 58.

The spelling of 323210916820993 in words is "three hundred twenty-three trillion, two hundred ten billion, nine hundred sixteen million, eight hundred twenty thousand, nine hundred ninety-three".