11322123021 has 48 divisors (see below), whose sum is σ = 18001032192. Its totient is φ = 6800601600.

The previous prime is 11322123019. The next prime is 11322123049. The reversal of 11322123021 is 12032122311.

11322123021 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 11322123021 - 2¹ = 11322123019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11322122985 and 11322123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322123011) 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 47 ways as a sum of consecutive naturals, for example, 5917561 + ... + 5919473.

It is an arithmetic number, because the mean of its divisors is an integer number (375021504).

Almost surely, 2^11322123021 is an apocalyptic number.

11322123021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11322123021 is a deficient number, since it is larger than the sum of its proper divisors (6678909171).

11322123021 is a wasteful number, since it uses less digits than its factorization.

11322123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434 (or 2431 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11322123021 its reverse (12032122311), we get a palindrome (23354245332).

The spelling of 11322123021 in words is "eleven billion, three hundred twenty-two million, one hundred twenty-three thousand, twenty-one".