11123302021 has 32 divisors (see below), whose sum is σ = 12693461760. Its totient is φ = 9669901824.

The previous prime is 11123302007. The next prime is 11123302039. The reversal of 11123302021 is 12020332111.

It is a cyclic number.

It is not a de Polignac number, because 11123302021 - 2¹³ = 11123293829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11123301986 and 11123302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123302921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9851785 + ... + 9852913.

It is an arithmetic number, because the mean of its divisors is an integer number (396670680).

Almost surely, 2^11123302021 is an apocalyptic number.

It is an amenable number.

11123302021 is a deficient number, since it is larger than the sum of its proper divisors (1570159739).

11123302021 is a wasteful number, since it uses less digits than its factorization.

11123302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

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

Adding to 11123302021 its reverse (12020332111), we get a palindrome (23143634132).

The spelling of 11123302021 in words is "eleven billion, one hundred twenty-three million, three hundred two thousand, twenty-one".