11021103123 has 8 divisors (see below), whose sum is σ = 14697811200. Its totient is φ = 7345898568.

The previous prime is 11021103109. The next prime is 11021103169. The reversal of 11021103123 is 32130112011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11021103123 - 2²⁰ = 11020054547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11021103173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358663 + ... + 388176.

It is an arithmetic number, because the mean of its divisors is an integer number (1837226400).

Almost surely, 2^11021103123 is an apocalyptic number.

11021103123 is a deficient number, since it is larger than the sum of its proper divisors (3676708077).

11021103123 is an equidigital number, since it uses as much as digits as its factorization.

11021103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751761.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11021103123 its reverse (32130112011), we get a palindrome (43151215134).

The spelling of 11021103123 in words is "eleven billion, twenty-one million, one hundred three thousand, one hundred twenty-three".