11232203121 has 32 divisors (see below), whose sum is σ = 17224272000. Its totient is φ = 7225654464.

The previous prime is 11232203041. The next prime is 11232203131. The reversal of 11232203121 is 12130223211.

It is not a de Polignac number, because 11232203121 - 2¹¹ = 11232201073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11232203094 and 11232203103.

It is not an unprimeable number, because it can be changed into a prime (11232203131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1828371 + ... + 1834503.

It is an arithmetic number, because the mean of its divisors is an integer number (538258500).

Almost surely, 2^11232203121 is an apocalyptic number.

It is an amenable number.

11232203121 is a deficient number, since it is larger than the sum of its proper divisors (5992068879).

11232203121 is a wasteful number, since it uses less digits than its factorization.

11232203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8510 (or 8504 counting only the distinct ones).

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

Adding to 11232203121 its reverse (12130223211), we get a palindrome (23362426332).

The spelling of 11232203121 in words is "eleven billion, two hundred thirty-two million, two hundred three thousand, one hundred twenty-one".