11120323021 has 4 divisors (see below), whose sum is σ = 11705603200. Its totient is φ = 10535042844.

The previous prime is 11120323001. The next prime is 11120323051. The reversal of 11120323021 is 12032302111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12032302111 = 9661 ⋅1245451.

It is a cyclic number.

It is not a de Polignac number, because 11120323021 - 2⁷ = 11120322893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120322986 and 11120323004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120323001) 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, 292640061 + ... + 292640098.

It is an arithmetic number, because the mean of its divisors is an integer number (2926400800).

Almost surely, 2^11120323021 is an apocalyptic number.

It is an amenable number.

11120323021 is a deficient number, since it is larger than the sum of its proper divisors (585280179).

11120323021 is an equidigital number, since it uses as much as digits as its factorization.

11120323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585280178.

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

Adding to 11120323021 its reverse (12032302111), we get a palindrome (23152625132).

It can be divided in two parts, 11 and 120323021, that multiplied together give a palindrome (1323553231).

The spelling of 11120323021 in words is "eleven billion, one hundred twenty million, three hundred twenty-three thousand, twenty-one".