99042709811 has 2 divisors, whose sum is σ = 99042709812. Its totient is φ = 99042709810.

The previous prime is 99042709807. The next prime is 99042709817. The reversal of 99042709811 is 11890724099.

It is a weak prime.

It is an emirp because it is prime and its reverse (11890724099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99042709811 - 2² = 99042709807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99042709811.

It is not a weakly prime, because it can be changed into another prime (99042709817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49521354905 + 49521354906.

It is an arithmetic number, because the mean of its divisors is an integer number (49521354906).

Almost surely, 2^99042709811 is an apocalyptic number.

99042709811 is a deficient number, since it is larger than the sum of its proper divisors (1).

99042709811 is an equidigital number, since it uses as much as digits as its factorization.

99042709811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 99042709811 in words is "ninety-nine billion, forty-two million, seven hundred nine thousand, eight hundred eleven".