99218417323 has 2 divisors, whose sum is σ = 99218417324. Its totient is φ = 99218417322.

The previous prime is 99218417321. The next prime is 99218417327. The reversal of 99218417323 is 32371481299.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32371481299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99218417323 - 2¹ = 99218417321 is a prime.

Together with 99218417321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99218417321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49609208661 + 49609208662.

It is an arithmetic number, because the mean of its divisors is an integer number (49609208662).

Almost surely, 2^99218417323 is an apocalyptic number.

99218417323 is a deficient number, since it is larger than the sum of its proper divisors (1).

99218417323 is an equidigital number, since it uses as much as digits as its factorization.

99218417323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The spelling of 99218417323 in words is "ninety-nine billion, two hundred eighteen million, four hundred seventeen thousand, three hundred twenty-three".