11012320123 has 12 divisors (see below), whose sum is σ = 13223485632. Its totient is φ = 9134642160.

The previous prime is 11012320091. The next prime is 11012320147. The reversal of 11012320123 is 32102321011.

11012320123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11012320123 - 2⁵ = 11012320091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012320097 and 11012320106.

It is not an unprimeable number, because it can be changed into a prime (11012320183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3623340 + ... + 3626377.

It is an arithmetic number, because the mean of its divisors is an integer number (1101957136).

Almost surely, 2^11012320123 is an apocalyptic number.

11012320123 is a deficient number, since it is larger than the sum of its proper divisors (2211165509).

11012320123 is an equidigital number, since it uses as much as digits as its factorization.

11012320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249762 (or 7249755 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11012320123 its reverse (32102321011), we get a palindrome (43114641134).

The spelling of 11012320123 in words is "eleven billion, twelve million, three hundred twenty thousand, one hundred twenty-three".