210223343321993 has 2 divisors, whose sum is σ = 210223343321994. Its totient is φ = 210223343321992.

The previous prime is 210223343321947. The next prime is 210223343322043. The reversal of 210223343321993 is 399123343322012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164831498723584 + 45391844598409 = 12838672^2 + 6737347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210223343321993 is a prime.

It is not a weakly prime, because it can be changed into another prime (210223343320993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111671660996 + 105111671660997.

It is an arithmetic number, because the mean of its divisors is an integer number (105111671660997).

Almost surely, 2^{210223343321993} is an apocalyptic number.

It is an amenable number.

210223343321993 is a deficient number, since it is larger than the sum of its proper divisors (1).

210223343321993 is an equidigital number, since it uses as much as digits as its factorization.

210223343321993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 47.

The spelling of 210223343321993 in words is "two hundred ten trillion, two hundred twenty-three billion, three hundred forty-three million, three hundred twenty-one thousand, nine hundred ninety-three".