11233201021 has 4 divisors (see below), whose sum is σ = 12837944032. Its totient is φ = 9628458012.

The previous prime is 11233201003. The next prime is 11233201051. The reversal of 11233201021 is 12010233211.

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 11233201021 - 2¹⁷ = 11233069949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11233200986 and 11233201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233201051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802371495 + ... + 802371508.

It is an arithmetic number, because the mean of its divisors is an integer number (3209486008).

Almost surely, 2^11233201021 is an apocalyptic number.

It is an amenable number.

11233201021 is a deficient number, since it is larger than the sum of its proper divisors (1604743011).

11233201021 is an equidigital number, since it uses as much as digits as its factorization.

11233201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604743010.

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

Adding to 11233201021 its reverse (12010233211), we get a palindrome (23243434232).

The spelling of 11233201021 in words is "eleven billion, two hundred thirty-three million, two hundred one thousand, twenty-one".