9923073398201 has 2 divisors, whose sum is σ = 9923073398202. Its totient is φ = 9923073398200.

The previous prime is 9923073398191. The next prime is 9923073398237. The reversal of 9923073398201 is 1028933703299.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8361923106601 + 1561150291600 = 2891699^2 + 1249460^2 .

It is a cyclic number.

It is not a de Polignac number, because 9923073398201 - 2⁶ = 9923073398137 is a prime.

It is not a weakly prime, because it can be changed into another prime (9923073308201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4961536699100 + 4961536699101.

It is an arithmetic number, because the mean of its divisors is an integer number (4961536699101).

Almost surely, 2^{9923073398201} is an apocalyptic number.

It is an amenable number.

9923073398201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9923073398201 is an equidigital number, since it uses as much as digits as its factorization.

9923073398201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 56.

The spelling of 9923073398201 in words is "nine trillion, nine hundred twenty-three billion, seventy-three million, three hundred ninety-eight thousand, two hundred one".