11123323999 has 2 divisors, whose sum is σ = 11123324000. Its totient is φ = 11123323998.

The previous prime is 11123323997. The next prime is 11123324029. The reversal of 11123323999 is 99932332111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11123323999 - 2¹ = 11123323997 is a prime.

Together with 11123323997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11123323997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561661999 + 5561662000.

It is an arithmetic number, because the mean of its divisors is an integer number (5561662000).

Almost surely, 2^11123323999 is an apocalyptic number.

11123323999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123323999 is an equidigital number, since it uses as much as digits as its factorization.

11123323999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78732, while the sum is 43.

The spelling of 11123323999 in words is "eleven billion, one hundred twenty-three million, three hundred twenty-three thousand, nine hundred ninety-nine".