11032203121 has 4 divisors (see below), whose sum is σ = 11116418544. Its totient is φ = 10947987700.

The previous prime is 11032203103. The next prime is 11032203137. The reversal of 11032203121 is 12130223011.

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 11032203121 - 2²⁷ = 10897985393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11032203095 and 11032203104.

It is not an unprimeable number, because it can be changed into a prime (11032203821) 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, 42107515 + ... + 42107776.

It is an arithmetic number, because the mean of its divisors is an integer number (2779104636).

Almost surely, 2^11032203121 is an apocalyptic number.

It is an amenable number.

11032203121 is a deficient number, since it is larger than the sum of its proper divisors (84215423).

11032203121 is an equidigital number, since it uses as much as digits as its factorization.

11032203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84215422.

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

Adding to 11032203121 its reverse (12130223011), we get a palindrome (23162426132).

The spelling of 11032203121 in words is "eleven billion, thirty-two million, two hundred three thousand, one hundred twenty-one".