11203103230221 has 32 divisors (see below), whose sum is σ = 17198016208128. Its totient is φ = 6354301409280.

The previous prime is 11203103230159. The next prime is 11203103230229. The reversal of 11203103230221 is 12203230130211.

It is not a de Polignac number, because 11203103230221 - 2⁹ = 11203103229709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203103230229) 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, 24843841 + ... + 25290761.

It is an arithmetic number, because the mean of its divisors is an integer number (537438006504).

Almost surely, 2^{11203103230221} is an apocalyptic number.

It is an amenable number.

11203103230221 is a deficient number, since it is larger than the sum of its proper divisors (5994912977907).

11203103230221 is a wasteful number, since it uses less digits than its factorization.

11203103230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455781.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11203103230221 its reverse (12203230130211), we get a palindrome (23406333360432).

The spelling of 11203103230221 in words is "eleven trillion, two hundred three billion, one hundred three million, two hundred thirty thousand, two hundred twenty-one".