11034320123 has 4 divisors (see below), whose sum is σ = 11034644568. Its totient is φ = 11033995680.

The previous prime is 11034320117. The next prime is 11034320137. The reversal of 11034320123 is 32102343011.

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

It is a cyclic number.

It is not a de Polignac number, because 11034320123 - 2¹⁴ = 11034303739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11034320095 and 11034320104.

It is not an unprimeable number, because it can be changed into a prime (11034325123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104318 + ... + 181523.

It is an arithmetic number, because the mean of its divisors is an integer number (2758661142).

Almost surely, 2^11034320123 is an apocalyptic number.

11034320123 is a deficient number, since it is larger than the sum of its proper divisors (324445).

11034320123 is an equidigital number, since it uses as much as digits as its factorization.

11034320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324444.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11034320123 its reverse (32102343011), we get a palindrome (43136663134).

The spelling of 11034320123 in words is "eleven billion, thirty-four million, three hundred twenty thousand, one hundred twenty-three".