11005324123 has 4 divisors (see below), whose sum is σ = 11169582760. Its totient is φ = 10841065488.

The previous prime is 11005324117. The next prime is 11005324129. The reversal of 11005324123 is 32142350011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11005324117) and next prime (11005324129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11005324123 is a prime.

It is a super-2 number, since 2×11005324123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11005324094 and 11005324103.

It is not an unprimeable number, because it can be changed into a prime (11005324129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82129218 + ... + 82129351.

It is an arithmetic number, because the mean of its divisors is an integer number (2792395690).

Almost surely, 2^11005324123 is an apocalyptic number.

11005324123 is a deficient number, since it is larger than the sum of its proper divisors (164258637).

11005324123 is an equidigital number, since it uses as much as digits as its factorization.

11005324123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164258636.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 11005324123 its reverse (32142350011), we get a palindrome (43147674134).

The spelling of 11005324123 in words is "eleven billion, five million, three hundred twenty-four thousand, one hundred twenty-three".