11331103021 has 4 divisors (see below), whose sum is σ = 12949832032. Its totient is φ = 9712374012.

The previous prime is 11331103009. The next prime is 11331103051. The reversal of 11331103021 is 12030113311.

11331103021 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, 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 11331103021 - 2¹³ = 11331094829 is a prime.

It is a super-3 number, since 3×11331103021³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331102986 and 11331103004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331103001) 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 3 ways as a sum of consecutive naturals, for example, 809364495 + ... + 809364508.

It is an arithmetic number, because the mean of its divisors is an integer number (3237458008).

Almost surely, 2^11331103021 is an apocalyptic number.

It is an amenable number.

11331103021 is a deficient number, since it is larger than the sum of its proper divisors (1618729011).

11331103021 is an equidigital number, since it uses as much as digits as its factorization.

11331103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618729010.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11331103021 its reverse (12030113311), we get a palindrome (23361216332).

The spelling of 11331103021 in words is "eleven billion, three hundred thirty-one million, one hundred three thousand, twenty-one".