11023133123 has 4 divisors (see below), whose sum is σ = 11093344320. Its totient is φ = 10952921928.

The previous prime is 11023133113. The next prime is 11023133141. The reversal of 11023133123 is 32133132011.

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 11023133123 - 2¹⁸ = 11022870979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023133095 and 11023133104.

It is not an unprimeable number, because it can be changed into a prime (11023133113) 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, 35105363 + ... + 35105676.

It is an arithmetic number, because the mean of its divisors is an integer number (2773336080).

Almost surely, 2^11023133123 is an apocalyptic number.

11023133123 is a deficient number, since it is larger than the sum of its proper divisors (70211197).

11023133123 is an equidigital number, since it uses as much as digits as its factorization.

11023133123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70211196.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11023133123 its reverse (32133132011), we get a palindrome (43156265134).

The spelling of 11023133123 in words is "eleven billion, twenty-three million, one hundred thirty-three thousand, one hundred twenty-three".