99823111 has 2 divisors, whose sum is σ = 99823112. Its totient is φ = 99823110.

The previous prime is 99823091. The next prime is 99823117. The reversal of 99823111 is 11132899.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99823111 - 2¹¹ = 99821063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99823117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49911555 + 49911556.

It is an arithmetic number, because the mean of its divisors is an integer number (49911556).

Almost surely, 2^99823111 is an apocalyptic number.

99823111 is a deficient number, since it is larger than the sum of its proper divisors (1).

99823111 is an equidigital number, since it uses as much as digits as its factorization.

99823111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 99823111 is about 9991.1516353221. The cubic root of 99823111 is about 463.8850398290.

The spelling of 99823111 in words is "ninety-nine million, eight hundred twenty-three thousand, one hundred eleven".