99443810423 has 2 divisors, whose sum is σ = 99443810424. Its totient is φ = 99443810422.

The previous prime is 99443810399. The next prime is 99443810437. The reversal of 99443810423 is 32401834499.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99443810423 - 2²² = 99439616119 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99443810023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49721905211 + 49721905212.

It is an arithmetic number, because the mean of its divisors is an integer number (49721905212).

Almost surely, 2^99443810423 is an apocalyptic number.

99443810423 is a deficient number, since it is larger than the sum of its proper divisors (1).

99443810423 is an equidigital number, since it uses as much as digits as its factorization.

99443810423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 99443810423 in words is "ninety-nine billion, four hundred forty-three million, eight hundred ten thousand, four hundred twenty-three".