11123033320021 has 4 divisors (see below), whose sum is σ = 12712038080032. Its totient is φ = 9534028560012.

The previous prime is 11123033320013. The next prime is 11123033320057. The reversal of 11123033320021 is 12002333032111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11123033320021 - 2³ = 11123033320013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11123033319974 and 11123033320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123033329021) 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, 794502379995 + ... + 794502380008.

It is an arithmetic number, because the mean of its divisors is an integer number (3178009520008).

Almost surely, 2^{11123033320021} is an apocalyptic number.

It is an amenable number.

11123033320021 is a deficient number, since it is larger than the sum of its proper divisors (1589004760011).

11123033320021 is an equidigital number, since it uses as much as digits as its factorization.

11123033320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589004760010.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 11123033320021 its reverse (12002333032111), we get a palindrome (23125366352132).

The spelling of 11123033320021 in words is "eleven trillion, one hundred twenty-three billion, thirty-three million, three hundred twenty thousand, twenty-one".