11023020203123 has 4 divisors (see below), whose sum is σ = 11024251696848. Its totient is φ = 11021788709400.

The previous prime is 11023020203119. The next prime is 11023020203147. The reversal of 11023020203123 is 32130202032011.

11023020203123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11023020203123 - 2² = 11023020203119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11023020203095 and 11023020203104.

It is not an unprimeable number, because it can be changed into a prime (11023020223123) 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, 615733436 + ... + 615751337.

It is an arithmetic number, because the mean of its divisors is an integer number (2756062924212).

Almost surely, 2^{11023020203123} is an apocalyptic number.

11023020203123 is a deficient number, since it is larger than the sum of its proper divisors (1231493725).

11023020203123 is an equidigital number, since it uses as much as digits as its factorization.

11023020203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231493724.

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

Adding to 11023020203123 its reverse (32130202032011), we get a palindrome (43153222235134).

The spelling of 11023020203123 in words is "eleven trillion, twenty-three billion, twenty million, two hundred three thousand, one hundred twenty-three".